Currently Online 
This one is tougher than PS5 one. For PS5 the 100-125m option perfectly matches with "around PS4 numbers". Here "around Xbox One numbers" can either be 25-50 or 50-75. I initially predicted 40m for Series X|S for the same reason as mentioned in PS5 thread, but seeing initial sales I think II might risk and up prediction for 50-75 range. Will strongly depend on Microsoft's first party and their overall strategy, but if I were to guess it can end generation anywhere between 40 and 70m. Most likely ~60m. Would be pleasant to see Xbox return to 360 levels as some here predict, but it's really hard to see how it can be possible. Xbox One gen just did too much damage to the brand's reputation that the whole Xbox Series gen will be spent by Microsoft to regain the mass market consumer trust.
