How exactly is that a power boost? Taking the eye from someone who's practiced with it, and is genetically compatible with it, so someone who is neither of those things? And with only one eye, he can't even summon the Susano'o.
If giving Naruto the Sharingan would somehow result in a Rinnegan, then sure, that would be a power boost. But it's Hashirama's wood style cells that awaken the Rinnegan.
Naruto with Sasuke's eyes would actually be less powerful that Naruto and Sasuke simply fighting together.
The power-up opportunities here seem pretty obvious:
For Naruto, there's regaining the other half of Kurama from his father. Which in addition to generally increasing his power, would give him access to whatever abilities Kurama's Yin chakra would grant him.
For Sasuke, the best chance for him to get a power-up would be if Hashirama had some way to transfer the Wood Style to Sasuke. In addition to giving him Wood Style, and it's related healing abilities, might also allow him to awaken the Rinnegan.
Although frankly, I think I'd prefer it if Sakura got Wood Style somehow. It fits with her skill set better.
I don't see how he could. It's not like he just has all their DNA in his pockets.