Regarding the status of Patch Notes (preliminary) - look at them as an unedited draft of a document. There *will* be mistakes to facts, there *will* be translation errors & there *will* be information missing. Until the Final Patch Notes are released we can't say for certain & it's not unusual to see something from the preliminary notes to change completely between, for example, the French draft & the English final.

On a personal note, I can't see them implementing cross-server linkshells just yet due to limitations (urgh, sorry) but it's technically possible if changes to things such as how character ID is handled are made.