There's a good chance you'll need to replace the BB or at least spindle.
Newer cranks "TEND" to use shorter spindles.

You aren't confined to a 28-38-48.
I've swapped in a crank that was 22-32-42 in place of the former. The FDER should be changed, since it's a different radius for the larger rings.
However, the Falcon brand isn't very good anyway, even compared to inexpensive Shimano Tourney level FDER's.