Yeah, no. I'm not completely against ports or remakes- ports of rarer games is great, as are overhauls- but I don't want to see the DS flooded with them like the GBA was with SNES games. It got so ridiculous that a good portion of the great GBA games were ports.
Also, a lot of the N64 games would be outdated. Not graphically, but the series has since evolved. For example, as great a game it is, I wouldn't want Ocarina of Time on my DS. Wind Waker (and by extension, Twilight Princess) had a superior engine.
I would much rather see new installments.. except in the case of Starfox DS.