it has a real good chance at 100m. they need to sell 20+m this year, i think pokemon can give them that. Labo will attract some new users mainly younger children. i think they should dip into the wii-ds back catalog to attract older casuals.
The key is release schedule, they blew out in 2017 with new titles. Now in 2018 they're filling gaps in with WiiU ports as they did to a lesser extent last year, the question is if the studios they have will be ready to release games on a consistent basis before they run out of WiiU games to port. xD
Essentially the WiiU releases are playing for time, giving their studios more time to get new games ready, while making sure there isn't a drought of releases.
LTD: PS4 - 125m, Switch - 110m, XBO - 51m
2020: PS4 - 9m, Switch - 22.5m, XBO - 2.5m, PS5 - 4.5m, XBX - 2.8m