The only thing I hope they change in OoT 3DS is the part where you go past
the vortexes underwater, anytime I got past it was purely by luck. No technique
that I could think of seemed to help. Swimming was the worst and the iron boots
only barely manage to keep you out of the vortex, while almost never giving you
the footing to climb away from the vortex. Is there a trick to getting past the
vortexes in the original OoT? And do you think this has been changed in the 3DS version?
I would be a bit upset if they easified that part, it was a huge room and a good break from the weirdness of the rest of the temple. It took me forever to figure out the best way to do it, but once you do it becomes simple.
Combination of the boots and swimming (stopping for the skulltulla of course). You can also just swim directly through it all and usually be okay. Just gotta be good on the controls.