First of all: great software. I'm glad I bought it. It's super cool.
What it needs in my opinion to be complete:
1) Project management system. I want my assets available in a library style. (Object system? Maybe, but it's more important an asset library project imho).
2) animation exported in json/xml with tile indexes. Ex: tile n.15 for 1000ms -> tile n.16 for 100ms -> etc...
3) Plugin system. 2 is less important if I can write my plugin. I wanted to integrate your program in my pipeline.
Ty and again: great software.