A training contract is a big red flag. If an airline is a decent place to work it should be able to retain you without financial threats. Also consider that there will be many promises that airlines will make to you that will not be met. Perhaps you may pick an airline for a domicile that will be closed on you out of the blue, etc. You sign a lease, or buy a house, your significant other moves with you and gets a job, and then all of a sudden you are displaced or furloughed plus you have a training contract hanging over your head if you decide to bail. These type of situations inevitably happen in this industry. DON'T SIGN ANYTHING AND DON'T TAKE ON DEBT!

Bonuses are another matter. I think that bonuses for new first officers will go up and up based on the supply and demand of ATPs. Very few qualified ATPs are going to come aboard for $25,000 per year (much less sign a training contract) so airlines will have to continue to sweeten the first year pot and compete against each other for new hires.