According to MyAnimeList, the World Twinkle season has finished airing. But according to GoGoAnime, it's still ongoing.
I would have to guess that it has finished airing since episode 16 wasn't released on Thursday. There might be some special episodes coming up atau they might be waiting for lebih episodes, but I wouldn't hope too much. We'll just have to wait and see if something happens.
I don't think the season is finished yet. Maybe Hima is making a special episode atau the series could be delayed due to the Hetalia musical that comes out on Krismas hari I believe. But Hima can't end the series now. It's too popular
Honestly, I agree that Hima probably got caught up with coordinating the musical. He hasn't updated the Manga on the tarikh that he berkata he would and the seterusnya episode was supposed to premier Feb. 9. There will deffinately be lebih seasons to come- probably like two lebih atau so.