Looks like they're being optimistic at the moment - if you look on RTT, there's some VARs and STPs in for next week, mainly late night, e.g. the last Helensburgh - Airdrie going to Bathgate, the late Edinburgh to Garscadden etc going to Helensburgh and some late 2Zs on the Argyle line, one of which is bizarrely fast from Cambuslang to Motherwell via the Hamilton Circle.
There are also some extra XC services from Glasgow Central to Edinburgh - whether this was planned or contingency, I've no idea. Class 230 demo runs also appear if you look at Glasgow Central.
EDIT - seems the Scottish Government are rather less optimistic -
https://www.bbc.co.uk/news/uk-scotland-59042772