So there are two possibilities -
1. RBI wins: we can expect a crackdown by the government, the tax authority and the banks on the crypto users. We will start seeing news popping up about the frozen bank accounts across the country. Those who have used centralized crypto exchanges in the past, they will have severe consequences if the court provides retrospective effect. A new segment of people will come under the purview of the tax authorities.

2. RBI looses: it's highly unlikely to happen! I am following this case since beginning and I read each and every arguments that is happening on each hearing from crypto Kanoon Twitter handle. Till date, I didn't find anything moving into positive direction. So I don't really have high hopes. It's a vicious cycle of beaurocracy.

If RBI looses, don't be happy! Court will then ask the Finance Ministry to frame guidelines on crypto usage. Then the finance ministry will come back with the report of Subhash Chandra Garg Committee which proposed punitive actions against crypto users and open up a list of risks that crypto will posses over the economy of India. The court will then start seeing a new direction of arguments where Finance Ministry will take up the seat of opposition.

I will be very happy if this case takes 15 years or more to get resolved and remain a low priority case! Then we are good!

That's my personal analysis of the situation and this comes from experience of working with beaurocrats for a good amount of time.