I personally have 217 on my main 10 so I know that many is possible. Still, 217 is a far cry from 240. Without Blizz allowing us to increase Cooking to 700 and discover the Draenor recipes (since they're unlikely to allow us to Farm in MoP to increase Cooking Faction rep for those recipes) then I don't see us hitting 240. Ofc, they could also introduce a ton of new LvL 1 requirement recipes with Legion maybe. There are ~22 Draenor recipes via discovery (which you CAN discover) but Blizzard in their infinite stupidity placed a Character level 90 requirement to learn them, even though they're soulbound in YOUR bags that YOU discovered. I think I have several of them sitting in my Bank just waiting for Blizz to unlock them for lowbies.
EDIT: 219 WAS at one time Possible as learning Kungaloosh didn't have a Character Level requirement for a short time after WotLK's launch and if you are a Rogue (or played during Vanilla and got the non-bound recipe back then) you can learn Thistle Tea.
EDIT2: I'm unclear how WoD things effect LvL 20's. If you guys are pure F2P (no tied P2P Account) do you have ANY access to Draenor and things gained from it?