If greatest coders of the world gathered and asked me what to add on a perfect WA:
> Hats. Because we love swags. You don't like swag? Just like you can turn off background and water, add a button to disable viewing them.
> Missions that teach you some scheme essentials like roping etc. So you'll have some skills when you play online.
> Some tutorial missions you must play before league or other schemes online so you won't join a Shopper game and shoot zooka around.
> Special scheme mechanics. Auto placement and finish gate for RR, Project X WxW(Walls change color after you touch them), your weapons act as /boomracing on WxW if you didn't touch walls and/or get a crate, auto placement and auto score count for darts etc. etc.
> Built in Worms Wikipedia, so you can learn schemes n shit.
> Integrated TUS, ONL, WO etc. If you get certain achievements (new rank on TUS leagues, medal on WO etc) you get special swag! Golden zooka, glowing rope, you name it!
> Real time gameplay for new scheme opportunities. Real-time racing, arena fighter(10-15 players, all against each other, real time, zook n rope, you don't lose control when you get hit but only die when hp becomes zero), and many more possibilities.
> Forts mod, with ability to use your own forts! Your fort needs to be approved before in case some people use nude, gore image etc.
> Improved random maps mechanics like MapGEN, RRGEN.
> Custom missions, being able to make custom contents. Just check how far Skyrim went thanks to fan contents. New weapons, new terrains, new possibilities.
> Being able to rejoin a game after you drop. Rocket League has it, why not WA too?
But here I am, staring at screen and dreaming one day devs will bring awesome features and WA gain popularity.