New duo Main games 2013
Frlg remakes early in 2014 for their 10th anniversity
late 2014 or early 2015 Hoenn remakes.
2015/6 Third game/ Sequels.
Anyways I hope I'm right about Hoenn remakes...
Firered/Leafgreen are remakes themselves; they're not getting another release besides 3DS Virtual Console. If you go by the pattern (and you could argue that BW2 skew away from this), then 2013 is the "dead" year, similar to 2008. Nintendo puts out a non-core Pokemon title to fill in the gap. Mystery Dungeon on 3DS does this. At the same time, the Wii U has no Pokemon titles and will need something to drive sales at the end of 2013 when the Xbox 720 and PS4 are released. I'm guessing it'll be a Pokemon Wii U RPG. An MMO would be incredible and is much needed, but even something similar to Colosseum/XD would suffice.