Patience is the name of the game! If it's not broke,don't fix it.Looks like a new spike,time will tell. It could be a aerial root. Hopefully its a new spike. I don't have any problem of re-potting if the plant needs it at anytime. If you saw what I just did with a large cattleya in bud, you'd think I'm crazy ! Not only did I repot, but I also divided the plant. If you do re-pot you will want to remove any dead or mushy roots. There are some good helpful links in the RVO library on how to re-pot your phal. I would wait to see what others have to say about re-potting. Looks like whatever you are doing, your plant seems to be happy. Have Fun, Rich