That's been a rumour at ABX for a couple of months. We know that the company has been negotiating for some large international contract or charter. The union has been involved negotiating work rules with the company. No names have been mentioned. ABX and ANA have had a good relationship, with ABX buying several 767's from them. ABX was also in line to purchase the -300's, but ANA decided to start their own cargo operation, instead.
It's possible that this might be a charter for ABX instead of a crew contract. We have several -200's coming this year and they are not committed to anyone yet. DHL will obviously be competing for those aircraft as they have quite a few old airplanes in the U.S. fleet. Anyway, ABX has not been in the business of contracting crews before, so a charter makes more sense in many ways. That would mean that ANA/JPE still needs to crew their -300's.
I'd say it's pretty likely that ANA and ABX have had conversations, but there's no indication that any agreement has been made. It's all just rumours and conjecture so far.