So, I was thinking about 1.8. (1 year, and barley any mods) But there are still plenty of mods for 1.7 being updated.
I think I may have a solution: Make it stupidly easy to port mods from 1.7.10 to 1.9. (I guess...)
Any other ideas.
Sidenote: I do know that this would take lots of effort to "familiarize" the functions and stuff. I'm not one of those jerks with no knowledge, who expects everyone else to do "easy" things.