It's a coincidence more than anything, really. I just thought it was neat and worth pointing out.
Also there's some alliteration in those characters' names:
Mega Man
Kirby: Super Star (okay, maybe that's cheating)
Gabriel Gray (Sylar's real name) / Peter Petrelli
Quite promising, these three...
Mega Man 9's retroness is way cool (and might even bring about a rebirth of oldschool hardcore games, maybe?), not to mention a long-awaited sequel to the strictly classic Mega Man.
Kirby: Super Star is (was) easily the best Kirby game ever, but Ultra will top that by adding more games, enhanced graphics, CG rended cutscenes and is now in portable form.
And Heroes' season 3 should be better than season 2, which was rushed due to the writers' strike. Also, Sylar is back, along with new villains.