My opinions bases on what is shown on that image are simply as follows

that "wheel" shows and HIGHLIGHTS jobs ONLY
Summeoner does not have a book (grimmoire)
and that DOES indeed look 100000% as a scholar, Even the socks, shoes etc etc no way of getting that wrong.

Now either

A: SE decided to change last minute the weapon of a SMN
B: Given that yoshi said that we need more caster classes they are doing SCH ALSO
C: Arcanist will unlock both SMN and SCH and both will use different types of books.

But that IS NOT AN ARCANIST.. period