i don't see any V8 coming out of honda any time soon but IMA sounds nice...a IMA system in the RL will be nice no other luxury car company has this...and if you want the RL to move up it wouldn't be competing against E class and 5 series more like S class and 7 series.
RL= S class, 7 series, LS430, Q45, A8
TL= E class, 5 series, ES300, I35, A6
TSX= C class, 3 series, IS300, G35, A4