This is MQL5 we are talking about, the programming language, not the platform client. Plus the interview makes no mention of the platform getting an upgrade - or am I wrong?

imo, Metaquotes won't fix known issues, let alone add new features, until it sees its business threatened, either by the NFA culling its main customers (the bucketshops) and/or ECN's deciding that it might make business sense to allow MT traders access to their feeds. But I'm not holding my breath on either happening anytime soon...