Caught up last night! And yes I'd agree with the likely theories that Gemma is a clone (especially with the goats), the techniques they've used to create Severance are also being used experimentally to transfer consciousness entirely from one body to a new clone body - I would add to that, though, that if it's the case it seems likely that Gemma was somehow involved (e.g. had an implant) BEFORE her accident, or possibly, Lumon briefly had access to her after the accident but before she died. I don't know how they'd have "harvested" her memories otherwise.
Also possibly a good call with Ms Huang being a 2.0 clone.
They're also doing a lot of talking about souls/soulmates... and one clear thing they're indicating is that Helly R and Mark S, and both of their outies, seem to feel a "connection" to each other no matter which "version" they're in. Same with Irving and Burt, and Dylan and his wife. And yet Mark S (innie) and Ms Casey didn't seem to feel that connection or any recognition... potentially, because she is a "copy" of Gemma not any form of the original, thus will discover that their "innate" connection isn't there.
I'm also pretty sure they'll all end up being reintegrated which will be interesting to see. It's been shown that they basically ARE the same people - Mark S innie and outie are basically very similar in all ways. Irving seemed different but in the end, his "outie" personality started to come through in his "innie". Dylan is an interesting one because he's just a version of himself that "found something he's good at" and feels confident in himself because of that, whereas his "outie" is aimless and a bit depressed because he feels useless. Helly R will be the most interesting IMO because "innie" Helly firmly for obvious reasons wants to believe that they are nothing alike, but in all likelihood, "innie" Helly is what "outie" Helena would be like if she hadn't been raised in the family she was raised in; the person she's become as an "outie" is strongly corrupted by power/her relationship with her father... so when they reintegrate it may change "outie Helly" significantly (i.e. she'll end or change Lumon when it passes to her)