I use that registry change on my computer, and it is true, the game does look amazing - and I have a LCD widescreen. Instead of trying to set the widescreen setting in the registry though, which is easy to screw up if you don't do everything absolutely perfect, I would recommend simply increaceing the standard resolution in the registry then using FFXI's Aspect Ratio feature to set it to widescreen settings.
As for WoTG: SE added a lot of new monster types, including several new charmable ones, one being the( rather odd looking ) Ladybug, that seems kind of weak but has very powerful Weaponskills(During the day, at night they suck).
Campaign is very nice, any job level 11 or higher can participate in Campaign Battles(Similar to Besieged) or Campaign Operations(Similar to Assault) for EXP and Allied Notes, and most of them can be done solo, though some select few require a group of 3-6.
Scholar seems to be largely a support job. At lv 40+, it hosts an interesting array of weather spells (they add a weather effect to a targeted party member, nice for enchanced spell/weaponskill damage, latent equipment effects, and various other quirks) In the higher levels, they get a line of -helix spells, extremely powerful DoT, though only one can be used at a time(you can't stack even two, let alone four or eight)
Dancer is also support, but holds more viability as a DD or healer. Their dances consume TP, reducing their chances to use WS, but the dances can do everything from enfeebling a monster to curing the party.