The author of this strip has a tendency of spreading out his little Chekov guns and hide their meaning until the moment arrives for them to fire.

I've been thinking that we have seen several sendings in this book which should clearly be an indication that Xykon did not put up the Cloister spell that prevented the party from reaching Haley and Belkar in Don't Split the Party.

Now the reason why from an in-character perspective is easy to explain, Redcloak wants Jirix to have an open channel which could be important if anything happens to the rift in Gobtoppia.

But what about an off-play reason?
In other words, is this a slight hint that perhaps we should ponder if anyone is going to be sending a message from the outside or possibly a non-epic character would teleport and join in at some point?

I'm betting on either Hinjo (prophecy) or Miron (That cliffhanger in the desert can't possibly be something the party doesn't find out about)

Any other guess who might show up?