I think you are confusing the current situation with hyperinflation periods of the past or the 2001/2002 crisis, and current events are very different from those periods.

Life these days is business as usual. Everyone is pricing in pesos, prices are not constantly changing, ATMs are working, credit cards are accepted (I actually bought a plane ticket in a European website with my Argentine credit card a few days ago, and had no issues at all), and there are no disruptions other than your typical daily Buenos Aires protests.

Prices will obviously rise in many items over the next weeks, as customary after a devaluation, but this is not Argentina in the late 1980s nor Venezuela, where they change daily.

I don't see why you shouldn't plan your upcoming trip. We are at the end of the "hot sale days" here and there were quite a few nice offers (in pesos) in plane tickets and hotels throughout the country. Maybe it's worth taking a look.