Sounds promising, a problem in Sweden is that most tournaments and league play uses Stiga balls so no point to practice with other balls. So hope Stiga release a ABS ball also!
It's very likely that any company who marketed a rebranded DHS 40+ ball (the original, rubbish one) will introduce a rebranded D40+ offering. It's either do that, stop selling a seamed plastic ball (supply of the original ball will dry up eventually), or switch to a different manufacturer (seamless, if they don't already offer both options - many do).
Also, you can make some educated guesses by checking the ball list regularly:
http://www.old.ittf.com/stories/Pictures/Balls_07_2017.pdf
For example, after DHS got the D40+ on the list, Donic added the P40+, Stiga added the Perform 40+, and Tibhar the SYNTT NG 40+. All seamed, all made in China. I would eat a cake shaped like my hat if they aren't all rebranded D40+ balls.