Zelda Ocarina of Time 3DS is a port. Trust me, it's the exact same game as I have on the N64 and on Gamecube in the Zelda Collector. I own them all. You obviously don't understand the difference between port and remake. A remake is a total overhaul of graphics, text, videos(if there are any), audio and perhaps additional content. Meanwhile a port can simply be the exact same game but with minor adjustments to fit the target platform.
I own literally every single US available version too, thank you very much. N64, Collector's Disc, Master Quest Disc, Wii VC, and 3DS.
You obviously don't understand your own definition of a port. I personally think the lines between port and remake can be somewhat blurred. but that said, the parts I bolded were definitely included in OoT 3D. The graphics were completely overhauled and extra features like boss gauntlet and sheikah stones were added. Also, the frame rate was improved and bugs were fixed.
To me, OoT on the Collector's disc and virtual console are ports (they're emulated, but whatever). but Master Quest on the GameCube OoT 3D on the 3DS are remakes (or at least halfway between port/remake), in my opinion.
And regardless, your foolish nitpick of port/vs remake is irrelevant to my overall point. Of course, in case you were too busy nitpicking to notice, my point being that nintendo was able to port/remake two games with completely overhauled graphics and some added polish and extra features in one summer while STILL releasing a whole bunch of new games within a year. The fact that they used a 3rd (2nd?) party (Grezzo) only further demonstrates my point that it's fully possible to port/remake games well while still devoting full time to new games.