Erm, I'm not really keen on a re-remake of FR/LG, to be honest. The idea stemmed from the fact that OR/AS were remakes of a generation that already hosted remakes, so it would seem logical to remake the remakes in the same one. As was said earlier, why remake a game that was released last year on the eShop, and is also connected with Sun and Moon? Also, Kanto has received way too many nods recently to the point where it's been run down into the ground, not just with the 20th anniversary and S/M's protag having moved from Kanto, but X/Y is chock full of them, right down to Santalune Forest having the exact same layout as Viridian Forest. Also, we can visit Kanto in HG/SS, which is playable on a 3DS.
If anything, I'd rather not see a full remake of FR/LG, but rather a re-imagining of Kanto; a different plot set in the same region yet still containing features that were exclusive to FR/LG, such as the roaming beasts depending on your starter (except they'll probably start roaming earlier in the game) and a trip to the Sevii Islands, hopefully opening up Navel Rock for the first time since it was event-exclusive. If all the previous things happen, then there's a lot of potential with having Lugia and Ho-Oh play a major role in the plot, because they're the trio masters of the legendary birds and beasts respectively, and also Kanto lacked a legendary duo.
