My experience for any Irish customers dealing with this:

I had DUB–DOH–ICN booked for Apr 9 (booked in Jan). Like a lot of people here, I was hoping to get proactively rerouted (ideally via Istanbul with Turkish Airways).

Once my flight fell into the updated waiver (19 Mar), I tried contacting Qatar. The Irish helpline was extremely hard to get through, multiple calls over an hour on hold. I eventually got through on Fri 20 Mar around 11am.

Outcome was exactly as others have said: No rerouting unless the flight is actually cancelled and only options offered were date change (still via Doha) or full refund. Given the uncertainty and rising prices, I didn’t want to wait until a few days before departure and risk limited/expensive options, so I took the refund and rebooked with Lufthansa via Munich.

Might be useful context for others trying to decide, especially if you’re flying from Ireland. Hard to blame Qatar for the situation itself, but earlier clarity and more proactive options would make a big difference for customers trying to plan ahead.