@gzabala sa pagkakaalam ko based on some research (please correct me if im wrong):
1) you can still enter and work in Aus with the 482 visa and file for the 189. Once ma-grant si 189, it will supercede yung 482 mo, meaning yung 189 na yung visa in effect mo
2) 189 does not care for state nomination, so yung pagtanggal mo sa NSW for EOI ng 189 ay walang effect
3) you can file for 189 onshore
4) this one im not sure, pero i believe you dont need to change employers once ma-grant yung 189 mo.
Ayun lang, congrats! Please let us know yung points, DOE, and occupation mo for 189 since we're also anxiously waiting hahahah