There are a few rumours flying around that the plastic HH models in the Calth game are to be released as standalones.
This makes a lot of sense. They have the sprues already and so repackaging as a new offer would bring the dollars in.
The interesting thing is where would they price a Tactical Legion Squad? The Tactical Marines are in Mark IV armour. A unit of ten will set you back GBP48 from Forgeworld. I'd expected the plastics to be in the order of GBP25-30. At that price point there is quite a nice saving vs. the resin option - and I'll bet they will sell bucket loads. However I'm not so sure that they will be good value for us Antipodeans.
A FW ten man squad costs GBP48 plus 12.5% making a total of NZD111. However applying the Deathwatch coefficient to a GBP30 price for 10 plastics would give a NZRRP of $99. A 40k Tactical Space Marine Squad is $75 so I expect that $99 isn't out of the realms of possibility. I expect a price between $85-100.
If it's towards the top end of that range, I'll be likely staying full resin but I'd consider plastic if they were fully compatible and around the $75 price point. What would be interesting would be if GW took the opportunity to price the TLS to drive Horus Heresy sales given they are trying to create a new "third line". I don't think it will happen but it certainly would be an interesting marketing move. Unfortunately I think they are firmly in cash grab mode and therefore $100 isn't out of the question.