It will take at least five years for a government to pass it through parliament and instigate.
Even if it's a Tory plan for the mid 2030s, it's not going to happen.
Why?
Because Labour get in 2024/5. That takes us to 2028 if Labour think they will win an election or late 2029 if they want to push it out.
The Tories are going to have to pull one hell of a blinder in the next 4/5 years will very few MPs providing effective opposition to return in 5 years time in order to be in power to do this at the start of the next but one parliament to meet mid 2030.
By then Labour will have put in some time of other educational reform of current exams through. On their own terms and not influenced by the opposition. The key point being that Tory plans are bollocks and there's no public desire for them so the announcement of Tory policy won't even influence Labour plans for educational overhaul.
Labours educational policy is focused on early years, reducing inequality, childcare options and access to certain subjects as well as improving core English and maths skills. Not a dickie bird about new exams.
Even significant Labour reform is unlikely to go down that well with teachers as it is, as they will have to apply the reform. They just want less bullshit and adequate funding for what they have now.
The state of current politics means the Tories might get back into power in the mid 2030s. If they are lucky.
But no this won't see the light of day.