Well if we look at SE and Sega they're both ending their 3DS series. Bravely and Theatrhythm are both probably done and Sega has outright said Project Mirai and 7th Dragon are the last entries.
Well from the sounds of it MH is going multi and Level 5 is already multi now. I don't think "We have some of the titles the other platforms do" is a particularly good leg to stand on or a sign of great support.
The 3DS is probably going to be substitute, it's pretty evident that brands that just came out on it/are going to come out in the next months on it, will be the last episode for that console.
does that mean that the NX (meant as a 3DS successor) will not see support? Why, exactly? Usually, if a softco is presenting, announcing and releasing games for a console, you don't get the message of them abandoning the ship.
Plus, this MH multi with Sony is going around since 2012. me too I also think that sooner or later the game (simply being a third party game) could become multiplatform or even switching back to Sony. But are we basing the analysis of the support on this? Really?
Plus, why a possible MH multi (from N esclusive to N-Sony shared) count as a "Sony support", but viceversa possible multiplatform game going also to NX aren't counting as a sign of support?
Which is the Level5 multiplatform project? The desappeard PS4 JRPG? That should eventually somehow tone down their HUGE 3ds committment?
Last but not least: SE is heavily supporting Sony ecosystem. I totally agree. We can't forget about their 3DS game too, on the other side (DQ8 is going to be released on the 3DS soon: it was the only main DQ never seen on a Nintendo platform: why not announcing it for Vita, instead? What if the new Dragon QUest Monster game is another 3DS game?). But there are also other publishers, that are still announcing games/saw good results on the 3ds, despite it being in its "late" llife cycle.
I was able to gather a pretty decent list last week of games announced (it was mixed: third and first party game) for 3ds in the recent months: I was surprised by its tone, due to the 3DS "eldery age", honestly.
I don't want to sound hostile at all. Opinions are opinions, and I'm pretty sure that the support for Nintendo will somehow being impacted by mobile and PS Ecosystem, but I can't see in DQ Builders the sign of all third paries abandoning the Nintendo portable ecosystem all together, as if there is no game announced/coming out or no reasons/heavier sign of third party Japanese support for Nintendo portables.
Last week I remember various users talking about which brands/IPs could possibly switch from Vita to NX (meant as a 3DS successor) if there will be no Vita: someone was poiting heavily into this scenario: I think it was too optimistic for Nintendo, with various brands (imho) going mobile, desappearing or going as digital release on PS4. But I can also certainly see other actually going from Vita to 3DS if there will be no Vita successor, considering how the target could "partially collide" and how successfull the 3ds was (especially in Japan, but also in the West the comparison with Vita is pretty...rough).
This just to clarify that I'm not seeing a golden future for a Nintendo handheld "per sè", but profetizing its doom is pretty weird too, imho