Fairy Tail is based off a manga which is ongoing, so any talk of "sequels" isn't a big deal. The 'sequels' just pick up the manga where the last episode left off.
The anime version went off the air for 1 year, then came back in 2014. The first run is eps 1-175 and the "sequel" are all the new eps since it came back.
I am actually hoping the 2014 one gets some filler.
Honestly Naruto still probably has had some of the best filler arcs of all anime with each one focusing on characters who mostly didn't get much action in the manga. Its issue is eventually it fell into an endless whirlpool of filler... where you had arcs upon arcs of filler one after the other.
-----
Also FINALLY an episode of the new Sailormoon I like more then the equivalent old episodes.
It was actually refreshing to see Sailormoon summon up resolve without needing to be pummeled first. As well this is the first episode where I bought the romance between Sailormoon and Tuxedo mask as something sort of "mystical and nostalgic" rather then how it usually felt... Probably because they let it actually develop here instead of just skipping to where they are already madly in love, so when it got to the "I feel like I always loved you" part it actually felt earned.
AND we are finally getting past that... early issue weirdness Sailormoon had that... the anime decided to keep for who knows what reason... (Honestly ONLY this anime has that problem. I have never EVER seen an anime do this XD). It even solves some of the weirdness the old one had of "Always Japan" in that, it isn't always Japan, just that the sailorscouts can't really help America... Sucks to be them!
Unfortunately the burning question of: "Why doesn't anyone know Sailormoon was Princess Serena?..." will never be answered.
It doesn't even hurt that the action was actually pretty good. Sure it wasn't anything too special, but it is nice to see them actually have a fight instead being a turn-based RPG, even if it is just for a bit.
Now if all the episodes can keep up the quality of this one... I'll be perfectly fine and won't need this pointless compare and contrast crud.