Maybe DG will join Alex in his stream next time to spice things up, like MD and Chanwoo...

I highly doubt it, dg is not the type who likes to show off in this way and I'm sure jiwon wouldn't agree with that in any case. Since the end is near is very likely that he'll decide to stop with the transmission and close the channel. The new episode ends with him asking himself why he should continue now that he has dg and also during this last show he wasn't comfortable at all...

If you remember he created this character (alex) just to get attention from others and now he hinted that he doesn't need it anymore since he has a person he loves now