That would be nice D1

It's really hard to launch a new scheme without 'official' support. Both veterans and newbs tend to stick to the things they know.
A TRL for 'smaller' schemes would be nice, although I don't know how active that will be.
It certainly opens up the possibility to introduce new schemes to the community. We even could make a brand new one for each month. It would be quite fun to explore the possibilities of a scheme and develop strategies and tactics for them. The old schemes kinda lost their dynamics.. the used tactics are all well-known, the only difference between players is usually how well they execute them.
I personally don't like the clanner league anymore either. Partly because strategies are much harder to implement when you're playing with someone who 'doesn't get it' or because the scheme isn't made for it (T17's worm switching). And the scoring system.. it's good, but the gaps in points are so big that it takes away motivation. Not to mention it's usually between 4 clans to decide who wins.
I wouldn't mind seeing the top 8 go to playoffs. It's true that some clans would get in that normally would never get anywhere near due to lack of games or a negative record. But IMO these head to head confrontations between clans that playoffs offer are much more exciting than the current league where it's all about playing as many games as possible and stacking up as many points as possible.
In a lot of other games clan wars are generally weekly events where clans gather at a specific time and play their (scheduled) matches.
And it's done on worms sometimes as well. For example between Russian clans:
http://crazyworms.ucoz.ru/I engaged in such competition on Trackmania in a more structured form. There were divisions of similarly-skilled clans and each of the clans in it would play against an other once, at a pre-scheduled time. It worked remarkable well, even on the lower levels.
Worms is a different game though, where a lot of inexperienced players participate as well. Same for Worms:Reloaded where a similar idea failed cause clans didn't seem capable of getting in touch (which was partly the server's fault tbh). But IMO it can be done.
Not as a replacement for the current clan league, but perhaps MI can code the cups in a way that not only individual players can sign up but entire teams. (Team captain signs up and lists 2 (or 3) other players who are also part of the team). And then business proceeds as usual. With one exception: games are played at set times.
Clan league would then stay as it is now (and leave it as it is or until we find a good solution), while the team-cups would allow 'clan'-games to take place in a setting where the scheme is pre-set (no more picks and points raping) and people would be free to choose which team they like to be part of.
Superactive clans could enter 2, or even 3 teams. Inactive clans could 'hire' players to fill up their roster, etcetera. Could be nice