Well, I don't know your age or paces or how long you've been training. But it sounds like you've got a good thing going and are ready to bump it up a tad.
When I read your first post I thought about making your long run 14ish. I don't know how quickly you're doing those, but getting over 90 minutes is a big difference than being under 90. For me. That is kind of the beginning of a long run.
Then bumping your midweek long run up makes sense, too. Post workout day, an easy 10 miler would be good. You might be able to handle more. But take your time. And if you're not feeling it, drop the miles. Or do an easy double. I think the midweek medium long run should definitely be a staple in ones training, but it also might be the first thing to drop off if you need a break.