My "opinion" is that yes I think you'll be fine with shopping for a NWA ticket. Worst case senario would be you'd have to request a refund from your credit card company if in fact there were problems (assuming you're using a CC). Or hope other carriers would let you transfer the ticket.
That being said I did not "purchase" my NWA tickets for our Oct. trip, but I did use my airmiles!
I am also flying to Ireland in September and have been checking prices. Tickets through NWA have not come down or changed so I will ....A) Wait until closer to my departure day to shop for discounted fares through NWA or B) If it's a big price difference, go with another carrier and unfortunately not acquire some big airmiles.
If you do purchase NWA tickets and add on
trip insurance make sure you can indeed benefit from that insurance if NWA is "no longer"! In other words read the fine print!
I'm not sure if you are WorldPerks FF miles members but......I called them a few weeks ago with the question about what happens to all my accumulated miles if NWA ceases to exist. They honestly had no answer to my question, they had no idea......but pretty much hinted "if there is no NWA there will be no more NWA FF miles". Interesting that they were so clueless as if I'd be the only customer concerned?
Good luck whatever you decide, and hope this helped.
Have a great day! Still cloudy in MN! (Although I do admit the sun did make a few rare appearances this week-end!!

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