The price will go in line with the iMacPro:
Base iMacPro $5000
Base MacPro $3500 (+ $1500 for the new Apple monitor) = $5000
Not necessarily. The base Mac Pro in the past has always been in the $2500-$3000 arena. For example, the current Late 2013 nMP is $2999.
The reason why the iMac Pro is $4999 is probably an outlier more than the norm. It is in contrasting principle to the original idea of the iMac as “everyone’s” computer. The iMac Pro is not targeted to the same “everyone” anymore. Thus, the $2k markup as the “everyone” iMac.
While the Mac Pro is targeted at not everyone, as well, its target should be wider than that of the iMac Pro. Thus, why Apple will stay close to the $3K base price of the current Mac Pro lineup.
So what you are saying is buy a cheesegrater now and you'll be able to upgrade to a 2080 with bootscreen once they ship drivers sometime next year. Lose all hope for the 7,1 as Apple won't back down from their quest to lock down every Mac and won't allow expansion using aftermarket off the shelf cards.
It’s not about the relevance of the cMP5,1. It’s the evolution of Mac Pro in and of itself.
Apple will fix that “Thermal corner” they had encountered with the 2013 nMP by combining the “modularity” aspect of the cMP5,1’s CPU tray and that connector that connects it to the rest of the system. I don’t know what that is and seems like a proprietory but clever solution that made the cMP, a kind of early concept of “modularity.” The modularity in this respect with the cMP5,1 and 4,1 is that CPU-tray being removable, or, “modular.”
Look at that thing:
Doesn't that look "modular" to you?
My feeling is that a cMP + nMP = mMP (However you wanna interpret that)
In regards to keeping your cMP5,1 and buying an RTX card down the road? Well, that is not an issue. The issue is surrounding that card with modern architecture that will let it truly perform as it should without bottlenecks.
I also assume the mMP will have a T2 or T3 chip in it, in which case it might be used to authenticate third-party GPU cards. So, while an RTX card could work in cMP5,1, you will be stuck with beta Nvidia web drivers similar to in performance with current Pascal cards in High Sierra. As users of this setup will know, an RX580 is as fast as a GTX 1080 in this kind of setup.
So, a real mMP will be needed to fully unlock an RTX card.
PS—I don’t feel that an RX580 in a cMP5,1 currently in Mojave is unlocked anyway. I just feel like it works in the most basic level, TBH. But, of course, this is not a scientific analysis, just an observation having one…..