Uh... Yeah. Patch 2.1 was on December 16th. Three months ago. (OK, three months and eleven days.)

Live Letter IX Summary. Bottom of the page:
2:19:20
Q: When will individual housing be implemented?
A: It will be around half a year after patch 2.1's release. Currently, we are split between implementing a personal room within a free company house or personal housing. Since the decision will have a huge impact on how many additional servers we'll need to prepare, we have to carefully consider the balance of the housing system. We believe it will take roughly six months to have everything planned out and prepared.
SE has never said individual housing would be in 2.2. This half a year after 2.1/FC housing is the closest they've gotten to announcing a release for individual housing. Any source that says otherwise is either speculating or just wrong.