Yes, SideFX follows the VFX Reference Platform (https://www.sidefx.com/docs/houdini/licenses/index.html) so you can expect the next release of Houdini to follow the versions for the year in which it is released. Assuming they do a release this year then it would support Python 3.10 (and usually the previous version, 3.9, as well). When that release will occur is unknown, but traditionally the later half of the year.
Graham Thompson, Technical Artist @ Rockstar Games