Not to get too off-topic but Erased is no where near as good as its made out to be. Sanbe Kei is good at creating a good premise but he can't follow through it to the end. His other manga are the same. Erased became bad because the source itself falls off after a while.
In regards to A-1, I feel like the A-1 magic will make it a success regardless of how its adapted because Aniplex producers in general seem to know how to make successful, business-wise, anime. I personally have yet to read Neverland but its possible that they'll moefy the kids, especially Emma, into a moeblob to make it appeal even more to otaku. This series can't air during the day so in terms of discs, otaku are the ones who buy it, unless it causes a social phenomenon like AoT. It will also most likely be fast paced which means that they may very well get through a good amount of content. I heard the first arc is fantastic and the following are less so but still great. They may very well do the first and the following in 24. As it stands, in terms of boosts, I've seen that fast paced anime tend to give the biggest boosts however at the same time, they tend to drop off after a year or so.