I've heard from other people that the MCPE protocol will one day be updated to the TCP protocol, is this true? If so, I would really like that (But if it isn't I'm cool with that too) Also, sorry if this is posted in the wrong section or too short to be considered a thread. This is my first one on this forum and the first I've posted in a long time. The last one I posted was https://forums.pocketmine.net/threads/how-to-make-pocketmine-mp-plugins-series-alpha_1-4.4483/ (a long time ago!)
It is true that a switch to TCP is planned. However, this has a number of tradeoffs, as TCP is a reliable protocol and prioritizes packet arrival. On the other hand, UDP doesn't care if your packets get to the client or not, which makes it useful for games. However, the current MCPE protocol utilizing RakNet does not take advantage of this whatsoever, sending all (even non-critical) packets as reliable and ordered. Both MCPE and RCON communicate with UDP at the moment.