Demographic Regulation.
2 and 3 are completely unnecessary and counter to your entire idea.
If you want players to use the other cities, you need to not only remove the cost for waypointing to them (specifically from other cities), but you need to add more to them than just the crafting tables. As is, your ideas would force people to, once again, sit in Lion’s Arch. Why? Because that’s the gate hub, and it’s far easier to sit there, move to the portals to craft momentarily, then return to either find a group or move to PvP since you’ve restricted entering PvP to… the one place that’s overcrowded.
tl;dr: No, your idea stands to be more detrimental than the current setup. You obviously want to see the other cities used, but you’ve not solved that with your proposed solutions.
What Cinder said. Waypoint costs don’t keep me out of the capitals. The fact that there isn’t anything in the capitals once i’ve fully explored them, that isn’t elsewhere, is what kill them.