I’m sure they will be a four or five person band.

From Wikipedia (I know not the best source)
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In February 2010, whilst embarking on a solo tour in Australia, Wednesday 13 spoke with Drum Media saying “Right now, it’s the worst week, and I keep getting asked that question: ‘What are my future plans? The next step after this?’ It’s kind of hard to say. We’re possibly going to do another Wednesday record, record it in the summer and have it out around Halloween. Or the other option is… we’re in talks right now to do another Murderdolls album. So right now I don’t know which of the two is going to happen, of course if Murderdolls is possible then we have to do that, it’s gotta be the number one priority.” He adds “It’s just talks right now. The whole Murderdolls thing, it’s the band that me and Joey put together, and right now we’re having the same conversations that we were having in the very beginning of the band, ‘What direction, what kind of music are we doing this time?’ All the small talk stuff like that, so it’s far away from getting in that room with the full band or something like that – right now we’re just trying to get a game plan together.”

In March 2010 Jordison officially revealed to Kerrang magazine that Murderdolls had officially reunited with him and Wednesday working with producer Chris “Zeuss” Harris. Jordison said about the reunion, “It’s been an ongoing conversation between Wednesday and I from 2006 until now. We were bored with everything out there, and thought we had something to piss people off and shake things up. Everything is such a product or a fucking formula these days… Fuck formula! Fuck the norm!””

It was revealed on the official website that the band would feature a new line-up, without Slade, Griffin or Graves

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So if that’s right, we have the Murderdolls with Joey and Wednesday 13 from the original Murderdolls, and a new lineup from there.

I’m assuming Sid is doing the DJ Starscream thing.

I’m not positive on the Dirty Little Rabbits, but I’m sure Clown is working with them. They seem to be workaholics so I don’t see a break slowing any of them down.

As for the other four members, I have no idea about their side projects. But they’ve been touring almost constantly for almost three years now, they could use a break.