Every 2 gens after a generation of Pokemon, a remake will be made of that gen's region as a revamp.
i.e. Kanto= Gen I. Remake= Gen III - 2 generations later.
Johto = Gen II. Remake= Gen IV- 2 generations later.
With this information, it is safe to say that there will be a Gen III (Hoenn) remake in Gen V.
Release wise- Nowadys, a remake of the gen's region (Isshu) is made 2 years after the orginal games as improvemnt of that region. then the revamped region will follow a few months later.
i.e B/W= 2010 ( 2011 in America)
Remake = 2012
So we can expect a Hoenn remake in 2012 (2013 in America)
Any objections?