I imagine some of the greyed out abilities are because of reworks, replacements or cross-class abilities being converted, rather than just deleting the bulk of the toolkit. For example Brygots is greyed out, but we know that's staying. One of the crossed out abilities looks like Name of the Wind which is long gone and Careful Synth is both there and greyed out. A good number of abilities aren't even on his bars. Things like Careful Synth II, Masters Mend II and such could simply be merged into one ability.

In other words I wouldn't panic based on that image. But it does hint they'll be making a good few reworks.