JennaNovy
The timetables are getting continuously updated with the „EV“ replacement bus schedules only a couple of hours in advance. Therefore there‘s no point looking up the timetables for your day of travel right now. However if looking into them for tomorrow morning (Swiss time / CET), you‘ll get a rough idea about how things could look like in 3 weeks.
BTW according to local media, the reopening date of the damaged railway line has been postponed today to August 26th.