I've been using Flashpunk for several years now and made dozens of games, and since I would like to port some of them on mobile, I am rewriting FP rendering pipeline to make use of Flash's display lists which since 11.3, (IIRC) are hardware accelerated. This is kind of defeating the initial point of FP, but oh well,. times change!
Anyways, the point is, this is not another "flashpunk inspired engine" (and trust me I have that as well :P), but a plug'n'play replacement for FP, that you put in your source code instead of FP, compile with possibly as little changes as possible, and have the result be indistinguishable from the original.
Here is a tiny website with a demo: http://funkpunk.sos.gd/
And here it is on GitHub: https://github.com/TheSos/funkpunk
It's pretty much super early right now, but 90% of stuff works already! I hope this will come in handy to more people than me!
Let me know if this is something you were looking for