Alright so to start it off, these ideas I have are for the P.V.P. server, since that's where I play.
-Idea one is to get the plug-in so that Creepers don't break things upon detonation; On a similar note, the plug-in that Endermen no longer take blocks. This is mostly because I've been working out in the wild a lot on some serious builds so these are of great nuisance to me.
-Thought two is the shop prices might be a bit extreme, I know it's a small concern to me because I know better, however newer players who join go ahead and buy it and waste a lot of their stater money because they don't know better.
-My third thought is mostly for aesthetic reasons. I think it would be really cool to decorate around the main world a little more. Some examples of more decoration would be. If it's a forest area, add trees for as far as it looks good. A area that should be mountainous should have mountains. Maybe for some areas we know the climate/biome changes we work at changing the tree types surrounding the area, also changing the biome with world edit could be another way to express the change.
-In addition to the previous tree idea, we should also have full trees instead of the little ones we have. It would really make the map pop a lot more.
These conclude my little ideas for now, I might think up some more, who knows.
-NuclearKam0d0