General consensus among the Internet - if Pacific Rim can't make it, can Power Rangers movie?

Maybe. Pacific Rim had no nostalgia factor backing it up. Look at Transformers and TMNT, if the nostalgia factor can give those movies sequels, I have a good feeling Power Rangers can at least get one sequel. Will they be good and successful? I fear not.

Power Rangers is a way bigger brand name compare to Pacific Rim. Pacific Rim was a original film that was inspire by classic 70's mecha anime while PR has a lot of nostalgia value to it like Uchibabro77 said. Not to mention the PR movie will likely do well in Asian countries like China and South Korea (PR is a popular brand name over there as well). So at least it will likely do well in overseas even if the movie flops in the US.

Yeah, comparing PR to... PR is a very superficial one. The Rangers can at least appeal to that nostalgia audience, and they're also superheroes which are a big thing, too.

Oh trust me I know Lionsgate is licking their lips at the potential income from an international release. But Power Rangers is a tough nostalgia sell because it's really never gone away ... the Mighty Morphin Power Rangers are the nostalgia ticket, but whether or not they cash it in appropriately or just by making something "that resembles the original sort of kind of in a way" is another.

Neither has Transformers or Ninja Turtles, or Star Wars since the prequels.

Power Rangers is a little different in that it's two genres in one. The big mecha/kaiju part, perhaps, is a tougher sell (though Godzilla shows it is possible). But it can also make use of its superhero component, which should take up the bulk of the movie anyway. The superhero genre is still going strong, and if Power Rangers can set itself up as "superhero but a little different" as compared to say, the Marvel Universe, they may be able to attract a modest market.

Well, ol' Zilla also has brand recognition that a new IP like Pacific Rim doesn't, what with him being named "Honorary Cultural Ambassador of Japan" and all.

The biggest issue with the upcoming PR movie to me is the January release. Movies release in January are never blockbusters expect for Cloverfield and a few others. If you make a movie with a big brand name that will have a big budget and you want it out in January. That's why I was hoping for a April or August release for the movie.

I just figured they aimed for a January release to avoid a lot of strong competition.
I don't know what's coming in 2017, but I guess they want to play things super safe.
Not the smartest move, but...Eh.