Iver, LHITA is not an airline/company...yet.
As far as I see it, all is covered with normal rotations from FRA and MUC.
There is no base at MXP.
Its not just learning german to join LH, you have to meet the requirements and apply to LH, which currently is not hireing.
So I actually doubt that in case LHITA will hire own pilots, they will have a chance to join mainline LH.