I'm a mix of skeptical and hopeful.
If they produce another solderblock, I may hold off upgrading until I have more of an idea what the story is on the next Mac Pro -- I've never bought a desktop machine without socketed memory and I don't think I could bring myself to do it now, and if the entry price on the Mac Pro isn't too extortionate, and the platform is really flexible and future-proof-able in the way a solderblock Mac mini wouldn't be, then it's a real option.
The nightmare scenario then is that the Mac mini's a solderblock *and* even the bottom Mac Pro is a diamond-encrusted Maserati in Lamborghini sauce.
What bugs me is that earlier this month I put an (extra) new SSD into my gaming tower to use as an Ubuntu playground, and the process went like this hardware-wise: open case, put SSD in empty bay, connect to mobo, close case. No soldering iron, no atomic weaponry, no severed fingers. Why on earth does Apple not recognize that there are a lot of people out there who want to do the same thing with Macs, and who know that the blasphemous idea that you can't and shouldn't and mustn't and can't be trusted to is actually a very new thing in the Apple Mac experience, and is therefore completely reversible?
Having said that, if I do end up with a new mini (replacing my beloved quad core mini), then I might consider the eGPU at a later date. But factored into that decision is that i.e. the Blackmagic eGPU is priced only a little less than what I paid for my entire gaming tower, GTX 1060 (+6GB onboard) included. Maybe it's time to say, there are two kinds of tasks -- the ones that depend on a GPU and are done in Winderz/Ubuntu, and the rest which are done on the Mac, and that trying to bulk up a Mac to compete *graphically* with even a fairly cheap gaming tower is a losing proposition monetarily.