Synapse is a hard pass unless he appears in the comics very soon and does something really villainously compelling. I'm not seeing anything on the surface that would warrant a $30 purchase.
Armada... she's kinda in the same boat. I haven't seen her in the fiction in nearly 25 years, and even then, she was a footnote. But I think her body sculpt is pretty unique, even if it takes base cues from Baroness. And her face sculpt is arguably one of the best, if not THE best, female head hasbro has done in this line. I'll probably get one for the studio.
I'm likely going to pass on Rock-n-Roll... er... "rugged" Duke. Nothing about him is better than the retro, and he doesn't even look like the EU version. I think he's a swing-and-a-miss. He'll sell ok because "Duke", but by any other name, he'd be discounted pretty quickly.
Iceberg... he looks good, and he's a classic from '86. I will definitely PO a couple.
TV... I never had the original, but he feels like the Cobra counter to Airtight, so I'll likely get one or two. It occurred to me that I could use the original purple Molerats as the troopers and the Toxo's as the "officer" level hazardous specialists. They can send the molerats in to do the extra-dirty work... because expendable.