I don't think everyone proposing to just "add a center platform" truly understand the costs that would go into making that happen. I'm pretty certain it'd make the $8mm bridge look like chump change. I honestly could see this "update" to the DTE station area costing $50-100m
Oh I'm familiar with the costs – But I also see a group of a couple dozen people crossing the tracks, just now, trying to get from a Green Line train to a Blue Line train - which was actually in the process of pulling until the herd of people stepped in front of it. Like Wedgeguy said, it's poor planning for expansion at the very least.
I didn't even have much of an opinion in this matter until I started using DT East daily. Now I constantly think "Wow this is a mess of a transit station."
If a center platform were even remotely possible, MetroTransit would be mentioning it.
I know a center platform isn't just a plug-and-play solution, but concluding it's impossible to do simply because MetroTransit hasn't mentioned it seems like a weak way out.