Most certainly yes. Warriors games rarely get near 500k in the west in their entire lifetime

Thank you, some sense here finally. 

Any game selling 3 mil is considered good and deserves a sequel. Below that and the game is probably losing money or not worth developing from t he publisher's stand point. Though, Japanese devs usually have smaller budgets and teams, so the bar is probably lower for Hyrule Warriors. I'd think they need to sell 1.5mil to be consider successful. 

I think it will do similar numbers to DKC: TF, maybe a little more front-loaded.

The best selling Warriors on PS3 (One Piece Pirate Musou) sold 1.15M according to VGC. If they see only 1.5M as successful the Warriors series would be inexistant by now. I think they need even lower sales to make profit.

I dont think DW games are high budget at all, only one game last gen sold over a million (One Piece PW) and they make quite alot of them. I remember hearing Fire Emblem on wiiu would need 700k sold to be profitable. Every game is definitely different, but i couldn't tell you how much for every!

Looking at the numbers of recent Warriors it seems that also be overall a not too bad number. Japan underperforms though. But it seems Warriors games are not as successful anymore, as they were on PS2.

HyWa may be one of the best Warriors games out there (and easily the best gateway Warriors game there is, at this point... all in all probably Nintendo wouldn't dare let another "Other M" fiasco occur and was lording over the development) but it has a 5$ budget. Its using an already built engine which didn't see much in the way of optimization for the WiiU, and while the game is packed to the brim in content (to the point of almost an opressive amount of it, especially with the DLC) everything is very easy to make after the basic models, maps, and textures are built. The sequences are nothing out of the ordinary for a Warrior's game, its only the indepth bosses that likely took them more work than anything else.

The art-style and Zelda themes help to hide the mediocre IQ, like all Nintendo titles.

It won't need high sales to be a financial success. Also with the way this is being supported with DLC, rather than the "lets re-release the same game seven times with a different word slapped on the end" will also bring in a good return on investment of making the DLC without having to keep reprinting the game with monickers like: X, Ultimate, Legends, Empires, Legendary Empires, etc. (PS: I fucking hate how they do that to the main-stay Warrior games.)

They better be considering most warrior games sell nothing over here. The question is will Nintendo be happy with that? Probably content but not happy, Hyrule Warriors was supposed to be flagship title and it was even given a decent marketing budget too. It'll likely do nothing to slow down the systems falling sales, but it will make a profit at least. 

I just think that it would be nice if the next Warriors Orochi has a HyWa-DLC.

Well, hardware is up for europe and the game is the only explanation. Still I agree, the bump will be short-lived. But Bayonetta is coming soon for another short bump and then Smash for a more lasting effect hopefully.