I don't think there's any reason for them to continue to make 222s unless the profit margin is greater. Wago's own description of them is
Same cannot be said for the 2273 series over the 773 series (standard push in) as they don't offer a 32A rated in the 2273 to my knowledge. Only the red 3-way 773 is 32A rated but useful for bigger cables/applications.
So it seems they view them as a direct replacement.WAGO's 221 Series COMPACT Splicing Connectors for all wire types set new standards. This new series is 40 % smaller and even more user-friendly than its successful predecessor, the 222 Series
Same cannot be said for the 2273 series over the 773 series (standard push in) as they don't offer a 32A rated in the 2273 to my knowledge. Only the red 3-way 773 is 32A rated but useful for bigger cables/applications.