5d series never had a great reception among fans, they didn't even sell better than GX; the ones asking for 5d might be the 'komoney' trolls that want to ruin this game.
Geez!, they are really malicious.
This season in the begin was amazing. After Aster defeat (DD), The rest of the season was so boring especially when neos(save the world)and the other weird things I didn't like it.
I would have liked to see Aster beat light of destruction Sartorius/Saio. It was horrible how he tried to get Jaden to bargain for the satellite keys with Aster's life. It was like, "The whole world or Aster's life?" Ok, can I have 5 minutes to think about this? XD But when Kenzan turned into a dinosaur to destroy the satellite, that was when I was like, "WTH did I just watch?"
They don't really explain it. I just assumed it to be his monster spirit. I was dueling for awhile last night. I don't know how much that might differ from your time zone, but I'm usually on pretty late because school is annoying and then I end up playing other video games or writing before I'm ready to duel again. I FINALLY got the second mask change last night!
(FINALLY XD) I know that it is better to have three mask change and Anki instead of two, but I feel like I really need a break to focus on getting other cards I want right now and I don't feel like spending another month or two going through Valiant Souls again.
It would be illogical for them NOT to put in 5Ds. They can't keep the game with just GX and DM characters, it would get stale and boring eventually with little to no updates.