One year back to bands literally signifies nothing.
It could 100% come back how are you basing it never coming back on one year that hasn't even been confirmed yet!
Dua in 2022 did Europe May, June... Went to US/Canada for 4 events in July and in August only Sziget and her own festival in Kosovo. South America in September. I think Olivia like many celebrities would like to spend a couple of weeks vacationing on Mediterranean coast so she may be around.