score:3
It is completely impossible to know what the situation will be mid-April. We may be in a global pandemic situation with all flights cancelled worldwide, or it may all have died down.
What you can see is the current status of flights these days, on Flightaware for instance.
You'll see that at time of writing, it's a mixed bag:
It looks like Turkish Airlines are the most susceptible to cancelling the flights altogether in this situation, but it's still pretty hard to tell (and things can change in the coming hours).
Right now, it will be completely impossible for you to get a straight answer from anyone, simply because the answer does not exist. Nobody has a crystal ball, nobody knows what will happen in a month and a half.
Upvote:2
Turkish airliner has announced this morning (26th Feb.) to re-open their flights coming from Iran from 8th of March as they will have necessary equipment installed at their borders.
This is the latest news, which accordingly it wouldnβt be a problem for your motherβs mid April flight.