I think the problem going forward is that how do we distinguish between the metrolinx design scheme and each city's own transit design scheme. Go lines currently are run by Metrolinx but now Metrolinx is pushing their design scheme onto every new line they're overseeing. This might be a good thing and a bad thing. Good reason is that it unifies the design language on their new projects, but bad reason is that now people are going to be confused on which lines are run by metrolinx, ttc, and every other agency. If we want to unify design language for all of GTA, we're going to have to put the "T" on every single station and stop in the GTA. It's not even helpful because there is no mega transit agency that takes the responsibility of every transit agency, heck, we don't even have fare integration yet.
What's the point of this. Metrolinx doesn't have integration at all, and just wants to do some thing because it looks cool on a paper and map, but just makes things more confusing.