MFR and AE yes. The others will go where they fit. We won't be doing this : 6 modpacks with practically the same mods except for one or 2 thing. Instead we will be making packs where only a few mods repeat across packs. And the packs can easily be recombined into one large pack by people wanting that. This puts the more intricate mods in packs where they aren't up against easier to learn/use mods.
RC and BC will be somewhere. Forestry on the other hand... I love bees, bees are the only modded thing I have added code for. Bees are amazing. However Sir S hasn't been doing Forestry since the start of 1.6. Myst and CJ were maintaining it in 1.6. Player updated it for 1.7. Development on Forestry has halted which makes me incredibly sad. BC is starting to get some changes and new content but there is very little it can do that can't be done by quite a few other mods at this point.
For 1.6- 1.7 the mods in question are maintained by:
IC2 - Player
Forestry - Player (1.7), Mysterious Ages (1.6) Covert Jaguar
BC - Covert Jaguar, SpaceToad (1.7)
RC- Covert Jaguar
Magic Bees and Extra Bees are unlikely to be updated ( I hope they are but its unlikely)
It is very concerning that the original devs of all but RC have seemed to lose interest. Honestly if SirS or Mysterious Ages was to come back/maintain Forestry there would be less concern about it but CJ is now responsible for several very different code bases. SpaceToad is back now but he may disappear again. Putting that much faith and basing our packs off 4 major mods maintained by 2 people just doesn't make sense. If I knew Java better I would volunteer to maintain the bees mods. I love them. I would still volunteer to try if SirS was crazy enough to let me
. If something goes wrong Forestry is going to take second fiddle to RC for development. If SpaceToad leaves again we'll have the same problem with BC.