@MediumDave, take your point about no comparisons but the existing timetables are on Scotrail web site. AFAIK these are the same as pre-pandemic, as extra emergency subsidy has helped them run the trains.
On route I (used to) use regularly (and will again from next month), not much change proposed AFAICS. One that may affect some folk as follows:
"Through services between Fife and Tweedbank will be discontinued, and passengers will have to change trains at Edinburgh Waverley."
I'm assuming this is about capacity issues at Waverley as much as anything. However:
"The timetable will offer better connectivity between Dundee and stations in Fife, Perth and stations in Fife, and between stations within Fife. The journey time for some passengers between Perth and Edinburgh will increase, however there will be frequent journey opportunities available via a change of trains at Stirling."
Also mention of Kirkcaldy and Glenrothes Fife Circle services from Edinburgh being extended to Levenmouth when the branch line reopens.
Sounds like more "milk train" services and fewer express non-stop. So you win some, you lose some. Possibly reflects fewer commuting and business travel journeys and more leisure or shopping trips.