The only think I know is from this article. Mr Moretti has said “Over the next five years we will invest in the AW149, AW609 and AW209”
Moreover AW names are not related to weight, it is just an historical liste.
first AW139 (6/7t) - AW149 8t - AW159 - AW169 4t - AW179 (cancceled project for SW-5 PZL Swidnik) - AW189 8/9t - AW199 (Not yet known) and now AW209.