Ronaldo having two and half years contract which is going to end in 2025 then most chances at the age of 40 he will retire from soccer but still stay in soccer because now he is brand ambassador of the Saudi League and Al Nassr soccer club, and they want him to stay until 2030 which is long time hopefully things will be good for them during this time.
I do not think Ronaldo will stop playing at the end of his contract. He likes this game very well and with the way he plays, it is obvious that he still wishes that he was young. Ronaldo will not retire at 40, he would like to play for as long as his body can permit. So, what I feel is that he will have a contract renewal at the end of this one, and it may be even better because of what has been offered to other European players that have moved to Saudi Arabia's league. Al Nassr will try to beat it, to keep him happy.
Ronaldo is enjoying the VIP treatment being giving to him in Saudi Arabia and I don't think that after the end of his contract in 2025 that he will leave. It is possible that he will extend his contract because his club will likely keep him in the club for more years.
By 2030,Ronaldo will finally retire and go back to Portugal if he is still in Saudi Arabia because I don't think he will go beyond this in his football career. Though,the Saudis have plans of using Ronaldo to bid for the FIFA World cup in 2030 and I think this is the main reason he will stay till 2030 and wouldn't go soon.
I would like to talk about a slightly different context. I personally think that European football could be in great danger. What do you think about European football? As Saudi Arabia is economically self-sufficient, in the next few seasons they will want to add the biggest players of the European league to their clubs. What is your opinion on this matter?