Porting Blockland to another engine could be possible, but it will take a loooong time.
What if Badspot makes alot of small updates, until he makes that really big update related with performance and graphics, aswell as gameplay?
I can imagine how weird it would look if Blockland was run on something like Source, CryEngine, or even the Unity eng-
No, scratch the changing engine thing, probably is best to improve as much as possible the Blockland Torque engine, and we will just need to wait to see what happens in the future.