In the current situation of severely reduced demand even for the cheapest of flights and lots of unemployed 737 drivers out there and with a company where the "cash is king" mantra has been done to death ever since, I would be absolutely amazed if any company cash would be invested into training someone. Rated or self-funded sound far more practical. A training bond is a good thing for an airline under a completely different set of circumstances, namely when many candidates are required (and some of them are perfectly capable but not in a position to pay for the type rating out of their own pocket) and when pilot retention is a problem (and that won't be the case for some time as well since there won't be too many better alternatives available). In this situation, funding anyone's training is an unnecessary burden and damage to the liquidity of the company. Why pay for someone's type rating if you can either get a rated pilot or one who's able to self-fund the course? So, whenever recruitment starts, it would be safer to expect more of a pre-2015 arrangement than a 2018-style one.