I'm very interest in this plugin, are you currently working on the updates of it's roadmap?

I believe having multiple stages and a score system is a must, also does it supports custom frame limit per animation?

You bet this is still being worked on and the roadmap are my next steps. I've had a bit of a hiatus due to family vacation and a few life issues but progress will be faster than ever within the next week. 

Also yes, the custom frames allows you to customize the speed/delay each frame is played.

I'm glad to know that!

I'll be buying the plugin.

About the custom frames, i meant the frame count is adjustable?

Could i have a run cycle with 6 frames, for example?

If not, could you implement that soon? :D

Yes the custom spritesheet can be any size you like. The actual frame width and frame height are adjustable. The plugin will simply use as many frames as it can make with the width and height you set in the parameters.