i don't think it'll one up kabuto, just give it more closure, this ending feels like a real ending, kabuto's was like..........oh cool they beat him, i wonder what's gonna.........what'dyou mean it's over?!
I personally do not like open, forced, endings like the one in Kabuto. If you're gonna end a show, end it with some closure.
That's why I think the Boukenger finale will one up Kabuto's.