I can understand... you want to go on using new techniques (whatever)... but you cannot do the development auf 1.6, 1.5.4 and maintenance of 1.5.3 alltogether alone. That's the impression I got when having a look at the project in the last months...
New techiques like you say are not just about switching to something other just for fun... If I want rewrite almost everything , this is because I want make the maintenance and development more easy. Right now, each time we want to modify and/or enhance something, that a hell because layers are too close all together (hard dependencies). Of course, such work cannot be done in few weeks and of course, I cannot deliver all the things as fast as I would want...
Finding people able to "really" contribute to the project is not easy as those are generally not close to Perl language, and also because somehow, I must admit that I'm too rigid with CS rules and so on... But hey, you know me since ~10 years now. That problem is not new
BTW: My FB is full of posts about i-MSCP. Open your eyes