More likely after the current recruitment, training will be swift if the new hires can keep up. There are a few of E190 FO's pilots now who are meant to have transitioned to 737 almost like a year ago but haven't due to shortages in E190 FO's and vise vasa 737 to 787! and 787 FO's becoming junior Captain's on E190 (Assuming they wouldn't depart to ME in less than 6 months)
Also someone tells me they have increased the bonding money on TR.