As i said before I am glad i came across this place as i really like the templates that are created here and the support is also very good. I thought i'd come and give my two pence worth as to what templates i would like to see and i think would be of benefit of other developer members.

I have had subscriptions to many different Joomla template providers and still have an active subscription with a couple.

Anyway what i think is very beneficial to developer members are:

Tradesman template
I know you already have a construction template but i fell its a bit too over the top whereas something cleaner would be better and would also make it alot easier to user for different sectors like Builder, Plumber, Electrician, Flooring, Gardener, Decorator, Roofing, Carpenter, Tree Surgeon - i can go on.
There are lots of small businesses out there who i doubt want to spend thousands so a template to cover these would be great.
Wouldn't need a lot either, simply would need:
Homepage - Slideshow and some welcome text
About Us - Description about the company with testimonials (perhaps with the ability to submit testimonials)
Services - Icons and or images you can use to show each service which is offered, with ability to link to a full page or just show a small amount of text.
Portfolio/Projects - Ability to add completed jobs with info like name, description, date, cost, location and ability to show multiple images (also some may want to just show a gallery of photos)
Blog - but i am thinking this is optional if they use projects to update their website with latest jobs they have completed.
Contact - A form to email, could also potentially include the option for more fields to add fields to get a quote.

Pub / Bar
Again i know you have a restaurant template with a "bar" theme however being from England, UK i think there is a big market which you may be missing which is templates for pubs as we call them here.
I feel there is hardly any templates out there which are suitable for pubs, all templates for joomla are either restaurant or over the top bar themes.

Alot of pubs here do not serve food and are also very tight on money due to how breweries run everything and charge landlords through the nose.

I have found a random pub website here: http://www.esplanadepub.co.uk/menu.html - admittedly this one serves food but this is the state of alot of websites in this country and thats if they even have a website.

A simple pub website would need to have:
Home with slideshow, small bit of text also bits for location, opening times, newsletter sign up and events.
Food / Drink - A page which can list what drinks they offer including lager, cider, ales etc. Can also have the option of a food menu.
Events - A section where the pub could list what sport they will be showing on tv (soccer obviously being massive here) and also to show events they will be hosting like live bands.
Gallery - Photo gallery showing inside and outside the location
Blog - This could come in handy to post news stories about upcoming events or past events and also give them the ability to post about offers.
COntact - SImple contact form (some may also want ability to book a table but this is not really neccessary).

Paintball / Laser Tag
Another section which i think has a small selection of templates on offer. I think theres possibility here you can make a fully featured template alot of people would want to use.
For example look here: http://www.americanpaintballpark.com/
Thats a website stuck in the past
I'm not sure i need to say much on this as the website above actually shows all the pages i think should be on a site in this market.
Only thing i would suggest is that a booking system thats used would be something that uses timeslots rather than just a simple purchase to use at whatever time - possibly offer both.

Restaurant
Following on from my pubs above i think there is a massive market for restaurants. So offering a few alternatives is always a good idea.
An idea may be to include an outside component like vikrestaurants so you can show menus and also offer online ordering - this would be great for small take away businesses like chineses, indians etc.

Sport
Another section which i think is under developed. I will use soccer as an example here.
In England we have thousands of sunday league teams who as you can guess play sunday mornings for a bit of fun, however some teams like to be a bit professional and have their own websites which can show their players and player stats for each game etc. I'm not sure theres much in the way of components out there - i think Joomsport is one but the pricing is high - unless you could think of a way to display results etc without the need of an extension - or perhaps provide both options.

In any case i think theres potential to offer a sports template which could cover Soccer, American Football, Golf etc. I know of lots of golf courses which have poor websites.

Vehicle repair
The title probably says it all. I searched for a random website and came across this http://www.watfordmotstation.co.uk/ which is built on wordpress.

It basically does what i suggest would be good to build.

Business
A simple business/corporate template is always useful too for many standard business. It doesnt need to be anything special. All it needs is home, about, services, blog, contact.
A nice looking up to date with todays standard is all thats required.

Simple business that just need a brand online for any customers that may search them.


Obviously just my ideas. If you want me to explain any more then just fire away. I probably have more ideas but my mind has gone blank now so i will update if i think of anything.