The G6 should have an effect on pricing. I still use the GH1 (two of them) for interviews and they are great. Depending on price, I could see upgrading to two G6s. I like to shoot interviews with two (or three) cameras--having all the same camera helps in matching things up.
Yeah. If I wanted to sell a GH2 I would def do now, just because within 6 months you'll have Pocket Cinema plus who knows what else that "beats it" on specs, so people may start selling their GH2s and drive down price.
Only risk I see for you is if people want to get a Pocket instead of a GH3, you could see less GH3 demand. ..but given that you're at $1050, you're $100 under current prices...and I think GH3 has it's own fan base that wont be too affected by Pocket..you should be good to go...plus you'll get one of the 1st Pockets to be sold...so you can immediately sell your GH3.
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