This story is currently doing the rounds:
MoD 'looking at cutting Army to 60,000' says former minister - Telegraph
I'm not sure that the story itself has merit. I appreciate that people are tasked to look at various options, such as what "would happen if the RN scrapped all its submarines", or "what would be the effect of getting rid of all the Army main battle tanks". It doesn't mean that these would actually happen, it just means that when such an option is considered then the answers are readily to hand. Lots of "what ifs" are considered, few if any actually occur.
However, if the story is true, what it indicates to me is not that the Army will necessarily be reduced, but rather that MOD expects (knows?) that the next SDSR will be another budget cutting exercise. If this turns out to be the case, the reintroduction of an MPA/MMA fleet looks highly unlikely....