new mini RAM user upgradeable?

It's the same case, so yes.

Same design, so they actively encourage you to upgrade RAM.
HDD is still as easy, but they don't encourage it.

No mention of soldered RAM modules, so the logical assumption is that it's user replaceable.

Well, he specifically mentioned how easy it was to open a Mac Mini, there's no reason he'd do that if they were going to solder things in place.

It's on the website as user upgrade able