Generally I have seen classes from the factory go as long as 11 weeks, most of ours get tuned down to about a month after inital acceptance with factory trainers qualifing company trainers. The 787 has more new tech than any large aircraft in operation I know of BUT it is still just another damnb aircraft. In the USA most companies will continue that one month of training with a follow up for system specific training for engines/apu, LLM/CAT, special systems and in this case probably structural.
I usually piss off my trainers because I want the hands on over their theological BS. Just another bird!