Does anyone else think that Sinker might involve wedges or four-color factions representing fusions of two of the guilds?

I hadn't heard the theory before, but it's certainly possible. MaRo mentioned in his State of Design that Sinker was trying something pretty tricky, and four-colour design has certainly been tricky.

I haven't either, but it makes sense. They have to cram ten or more mechanics into Sinker, and they'll want to evolve the mechanics some. It makes sense for them to make cards with more than one. I also remember reading something MaRo said about his regret that the Nephilim weren't legendary creatures representing a coalition between guilds.

What's interesting to me about this is trying to imagine which guilds they would pair off to make the wedges or four-color "chunks."

It's a good theory, but it does kind of hinder them from evolving the mechanics 'the natural way' (i.e., trying to find some way to make Detain+ or Overload+). There doesn't seem room enough in a small set to do both. That being said, it's a small set. Unless the design+ was stellar stuff, I'd probably push for two mechanics on one card...

Yeah, I can't imagine cramming all ten mechanics in WITHOUT having multiple on some cards.

Future sight had 12 original mechanics. Future sight also had 21 returning mechanics. I really hope they will be able to make something amazing.

As for this card, it's fing awesome though I think it's overload may be a little undercosted.

If they had made overload a variation on kicker instead of an alternate mana cost then it could have plausibly worked with scavenge as well, if you could overload a card when you use it's activated abilities as well. Then they could put overload on anything with an activated ability! That would have been awesome.

I must admit, I'm a bit sad nothing like this happened.