I do hope we see a turn around from L5. It seems like Yokai Watch didn't take off as well as they had hoped in the West and 4 is nowhere to be seen.
Doesn't sound like Lady Layton has don't particularly well either with the Layton franchise being one of their biggest successes previously.
That soccer game doesn't look particularly good and it's limited to JPN and EU.
Snack world Switch looks about as nice as you could expect from an HD 3DS port. Not sure that'll move units, however.
I do wonder if their mobile initiative has hurt more than helped.
Maybe just anecdotal, but if I see a mobile port to a console or handheld that's full priced, I usually wouldn't be too interested. But you can't charge much for mobile games since that audience rejects anything over $15 most of the time.
Guess it also doesn't help that they just don't have a lot to release. They announce things way too far in advanced to the point that they'll either get cancelled or reworked.
That multi media mech game, Layton 7, there was a mobile SMT clone they announced like 6 years ago, that cool PS3 prototype, and more
I think Level-5's biggest problem is lack of IP control. They've produced a lot of successes, but they can't maintain them. It looks like they never make a (good) long-term plan for their series. Just look at how they add aliens and Avatars to Inazuma Eleven (2 and GO respectively) or instead of keeping the LBX from Danboru Senki a game, they develop it into some military thing. I haven't followed Youkai Watch, so I don't know about that one in particular. And another aspect of this same problem is merchandise. They oversaturate the market by releasing a super-innovative sequel every year and drown people in toys, plushies, and whatever merchandise they can sell to children. I doubt they create a Series Bible for each of their multimedia franchises wherein they create borders and come up with a plan for what kind of direction to push the series to in the following years.
Then there's the growing mobile gaming market. I think their plan to sell toys-to-life products for mobile apps aimed at children instead of IAP is a good one. It avoids empty creditcards and angry parents, it avoids breaking the immersion, and making the items physical allows them to develop the series out of mobile game boundaries. That's what they're trying with both The Snack World and Inazuma Eleven Ares. However, lack of experience in mobile game development in general has cost them a lot of time and money.
On the home console front, they're rebooting Youkai Watch and Inazuma Eleven now and aim both new series at a somewhat older audience than the original series (so basically, they target old fans). They make sure not to miss-match audience and platforms by going multiplatform, which sounds like the way going forward.
However, like you said, the mobile market and the dedicated console business are two very different things, and that's what I'm currently most worried about. Lady Layton, The Snack World and Inazuma Eleven Ares are all titles for mobile and for console. And I'm not sure that's a good idea. That may become a pitfall (or I am wrong, of course).
As for announcing things super-early, I don't think that will do the series themselves much harm. Whether such an early reveal adds something to the marketing campaign or whatever, probably not. I don't really have an opinion on that. Why would it necessarily hurt them?
Looking back on 2017, I think it was a disappointing year for Level-5, true, but I think Level-5 is one of those companies that will find another success within a reasonable amount of time and things will start to go better again. Ni no Kuni is mostly aimed at the west, so I can't say I care much about the Japanese numbers we'll get next week. The Snack World Gold for Switch is of course a quick cash grab, which is fine, because the anime still seems popular enough and the R&D costs for the project were probably very high. Such a port won't hurt, just like how Nintendo's Wii U ports won't hurt them, the games, or the franchises.
The most interesting thing for 2018 will be how Level-5 will handle the launch of a new era with, like I said, new Youkai Watch and Inazuma Eleven series, and hopefully a glimpse of their next multimedia project, which is probably Megaton Musashi. It's hard to judge that one right now, because we haven't seen anything of it yet. All we know is that it's something with mechas.