I can say that i loved it. Would rate it 8 or 8.5 out of 10. Maybe more, maybe less, will have to see it a couple times again until a final decision.
My fears of a possible reset didn't come true, thanks TPTB for that one. Lets just wait to see how the "pregnancy" side-plot (or main plot?) wraps up. I still believe that it's not true at all, and that it were some kind of Harvey trick too keep John focused and alive. But i dont know if he, Harvey, has the powers for that kind of thing. So, it may be true after all.
About the "beach" scenes, i got no problem at all with them. I think that John made all that up so that he wouldn't go crazy for real (and I can't tell how close he is from that). It was like a secret-hideout. The place where he could try sort things out between him and "his-Aeryn" (the same one from his Earth dreams in DWTB). It's nice to see that FS still trying to not forget its past ("what's done is done, and can't be undone" to quote Zhaan/Aeryn). Also, i think it was another John's "one thing that kept him alive" and "Hope, is all that i got" (to quote two of his lines) kind of thoughts.
When he could be with some of his friends again, he probably didn't need that anymore. He had other things to think about, other people to talk to, to worry about, ...
One thing that i liked a lot, but also made it a lot harder for the understanding, was the amount of Johns "human non-sense". I guess that i haven't seen so much in the same episode since CDM. If it keeps up that way, i think that the "Translator Microbes" will have to get an update, because nobody will understand a word that he says.
Other than that, i missed Aeryn, Dargo, Moya, Pilot and Jool a lot. Don't know what will happen to them, and am worried about who will still be a regular, and who will not (considering the opening, Jool is the only one that *seems* to be gone, at least for now). Sorry Stark, but i'm not gonna miss you that much. I knew Scorpius would still be there, more than any other character.
Ah! 1812 must became a regular! (but i'm almost sure it won't).
Talking about the opening, what i would expect from this season: John seems that finally feels at home in the UT (he is not "lost" anymore), despite the fact that he was left behind by his old friends he still consider them as friends ("this ship of scape prisoners..my friends"), Scorpius won't became another Crais (he is still "dangerous"), Grayza will be the "bad-girl" (the "powerfull" one...like anyone had a doubt), the whole "twin-john-incident" will have major influence during this season (there are lots of scenes from the "Twin-John" saga), we may see the Scarrans a lot more often ("i made enemies"), and probably a lot of other things that i couldn't see in the opening, but were there for sure.
One question: that first scene with John and Aeryn, when she is crying is from from "Season of Death"? (just to make sure that there is no TJohn and Aeryn "shipper" scene in the openning)
One last thing about the opening, that i consider worth mentioning, is the fact that there is only "one voice" now, instead of the "two voices" of the S3 openning (like if there were two Johns, the Earth one and the UT one. Guess which one still there?

My worries about this season vanished a little after this ep, thought im not sure yet. I will be sure after the next too episodes, which seems that will do the job that "Nerve/The Hidden Memory" did for season S2/S3, i mean, the begging of a long saga that will, probably, wrap up by the end of S5. And i don't know anything about the next two eps, besides the fact that they are a multi-part (and that means something big is about to happen, like every other multi-part: "John meets Scorpius", "John loves Aeryn, Aeryn loves John", "Neural Chip Removal/Jothee Rescue", "Zhaan's Death", "TJohn's Death" and "The end of the Scorpius Saga").
Thats it for the first view. Hope it gets better after the next ones.
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Tetsuo
http://geekbunker.org/tetsuo/