That would be nice, indeed but I think at the moment they should concentrate mostly on the PC.
More platforms require A LOT of work but they won't make the engine better and I think only a few people would use this.

There's so much outdated stuff which really needs to be renewed. (the default lighting system didn't change since A5 afaik)

So, the most important thing in my opinion is, that the Acknex Engine will reach a state where it is competitive to other engines.