There is much information and misinformation, opinion and speculation regarding what may be next week - let alone in coming months. I don’t mean on this forum, but generally.
We are also planning to travel (from Australia) to Europe and walk a Camino in a few months’ time. We expect the situation to change - more than once and for better or worse between now and then - so we will make the final decision closer to the time.
We also expect we will at some stage catch Omicron or other of the covid variants (either here at home or while travelling) - so we will take the precautions we can for ourselves and others - vaccinations, booster, face masks, hand hygiene, distancing, private accommodation, carrying RATs etc - to minimise the consequences.
Regarding catching Covid on the Camino - It stands to reason that days spent walking on a Camino path are likely to be less risky than days spent walking sightseeing shopping and taking transport in your local town - or in Madrid, Barcelona, Paris etc. But who knows …
In the end it’s a question of risk assessment - level of risk to yourselves and others that you think is reasonable. And having a contingency plan or at least an idea of one. What can I do if I get sick, test positive, have to isolate, change my plans - do I have the flexibility, money, language to make that manageable.
We are remaining optimistic that we will travel and walk as planned. We’ll see