personally I had an idea, let me explain:
-Teams would be made normally with captains given said amount of "money" to purchase players. this could be done on a stream similar to what native has been doing with any unpurchased players being given out randomly.
-Every week teams play their matches but every two weeks on the Sunday you have a normal "tournament" type where every team attends and plays. This would allow for a Sunday tournaments that people can play if they are not available during the week. Teams get points based off their weekly and Sunday matches which go towards the total score.
-Teams could be allowed swaps or substitute players during the week. Also thought of a minimum amount of rounds played per player sort of thing, not sure on this though but would guarantee everyone playtime so would keep new players engaged.
-Could do a fortnightly stream that discusses the matches played that week with players who performed well etc etc, could even get some statistics going if wursti (or someone else) is down for it which could also give the event large media attention similar to EGS but more engaging since it will all be covered on stream.
Here are just a few ideas, I am by no means an expert but just some ideas as I would really like a fantasy league on EU that isn't as boring as people say it is