Its kind of not known for sure by the playerbase since Fear was slightly mismatched on the projected, but a patch happens scheduled for May 1 with Solusek Ro / Legacy items removed tagged. The guise in the 1999 timeline gets removed in the first week of December 1999, but a lot of other legacy items went away in October 1999, but it seems like they are going to shelve them all at once to make it a little easier I guess. (The guise will go away actually sooner then it classically would)
Edit: here
https://wiki.project1999.com/Green_Server