Highlighting the particular section I am going to address.... so, why? Why is it necessary for them to add more weaponskills and abilities? There honestly isn't a reason to continue piling skills on top of what we already have as they have also shown us they have the capability to tier up skills we currently have into different forms and then sync them down again when you're in under-leveled content. For the most part it seems like the toolkits many jobs have currently is pretty flexible and complete, and typically in an MMO they only add skills and abilities to counter specific mechanics they've added to the game... which isn't necessary if they're smart about adding ways to counter those mechanics without adding individual skills which we have already seen with Vril.
If they are smart about it, they can keep the skill bloat way down to a minimum by further leveraging the tier system for skills, by adding new effects through traits or any other variety of methods that don't involve specifically adding X new skills to the jobs every expansion. The only reason these days it's seen as 'necessary' by the population is because that's the meta they're used to seeing. Shiny new skills, flashy new animations, brand new eye candy with new possibilities.... all of which can be accomplished without the need for bloat and without having to further condense the system. They have the technology and I'd rather see them leverage that than blindly add new slot-able skills just because that's what's expected.