No. It will have a bump for 2-3 weeks in Japan and get its resistance level higher. That said, it won't get a sustained increase unless it gets games, big games. It doesn't even have a 300k seller in Japan! 3DS has had 5 million sellers in comparison with the 6th on the way (DQ7).
When the 3DS got a pricecut, it got a massive bump, but it already had a decent lineup with a lot of promise (3D Mario, MK, MH, AC, LM, and MH4 and others in the horizon). Vita does not have that unfortunately. Even the PS3 looked brighter at the same time frame!
I'm not comparing for comparison's sake, but Vita needs much more than a price cut. The PSP needed MH to save it in Japan, and it only got big early numbers from the initial hype of the first Sony handheld system. Vita doesn't have that hype, it needs to release some games. Unfortunately unless something drastically changes I can't see that happening. FFX is a good game, but it won't be the Vita's saviour especially if it's releasing on the PS3 as well.
