I agree with Krell1, but would also like to add a comment about how much power your amps have, and how loudly you listen. I used to have a similar speaker config (N805s + REL Strata III). I always thought the N802s needed a lot of power and some significant volume to really open up.
Without knowing your listening habits and what comprises the rest of your system, I'd make a guess that, assuming your system sounds great to you as-is, upgrading only your speakers to N802s will disrupt the balance you enjoy. YMMV.
Without knowing your listening habits and what comprises the rest of your system, I'd make a guess that, assuming your system sounds great to you as-is, upgrading only your speakers to N802s will disrupt the balance you enjoy. YMMV.