and your ex T will do either what he feels is right for him in two years or ( perhaps if he is a good T) what is right for you. I have no idea what that is or looks like , but your options are largely defined by his permissions and what really lies in his heart. You don't have any more power in the situation 2 years from now than the one now.

I'm not going to comment anymore bc I doubt it is welcome, but I do wish you well as a fellow dog-adorer. I am getting too caught up in the idea of any guy/ human having this much power, that he maybe got by unfair means.

Sorry that you are hurting DP. It must be so very tough at losing your T especially at this time of year. This area of keeping up a friendship with a T or reconnecting again after a certain time has past seems to bring up a lot of different emotions for people for various different reasons so it is understandable that there are mixed opinions on it. At the end of it all though it is clear that you are hurting badly right now at the loss of someone highly significant in your life and I wish you well in dealing with all this.

I do worry that his saying that he will allow contact in two years may actually just drag out your suffering as you hold on to this idea and thought of a reconnection or reunion. As you say, none of us knows how things will be in two years time. Maybe he will be there are happy to hear from you again who knows. You seem to worry a lot about him forgetting you and stress that you were his last client so he might remember you based on that. Based on your posts it seems that you had a close relationship within your therapy whether it was therapeutic or not. You have had an impact and it is clear that you have impacted him. I don't think he will just forget you and not because you were his 'last' client ever, Whether you reconnect in two years or not you are a part of his story...forever and nothing can change that.
There is a chance though that in two years time he may have moved on and no longer feel the same about staying in touch. It might not happen... but it could... I just hope you can move forward from this and try not to spend the next two years waiting and hoping. If he is still there and happy to reconnect...that will be great...but if not it will only be devastating for you all over again.