I don't know the exact details about 2027, and honestly, information about such changes usually comes out really close to when they actually take effect, not a year in advance. The traffic police like to keep everyone in the dark.
If you're already preparing now - my advice is simple: don't panic and take the test under the current rules. Even if something changes, usually when they switch to new conditions they give people a transition period, and those who've already started studying can finish under the old system. When I watched my grandchildren go through various new regulations, there was always some kind of transition period.
If you want to stay in the loop - it's better to check the official traffic police website or your local branch from time to time than to rely on rumors. They usually publish all important changes in advance there. And don't believe everything you hear on social media right away - people often mix up plans, proposals, and what's actually been approved.