Probably...depending upon if the spring compression was the limiting uptravel factor.

If the compression of the spring was the limiting factor, then a longer coil would have the same limitation, and the uptravel in reality would be possibly even more limited by a larger coil, etc.

A BL would be the only way to allow the larger tire the room to stuff...if it hits some other limit on the way up, then that thing becomes the limiting factor.

Essentially, if the compressed coil becomes a bumpstop, you already lost the uptravel the same as if you had installed a urothane stop, etc.