To answer the question, I'd have to say: Yes...
but... only in so much as
any enemy is a credible threat given a juicy storyline.
Frankly, what the Daleks as a whole need to do is disappear into the background for a while and get back to conquering places where the Doctor isn't, rather than always butting into him. They've lost any sense of mystery and therefore threat because they're just too well known. It's hard to be genuinely threatened by something you've seen scores of times already, defeated or otherwise.
The Renegade vs Imperial Daleks was something that worked well, because there you (the viewer) were very much caught between the two clashing forces. It was no longer as simple as "the Doctor vs the bad guys", it was different and risky.
In the new series, mostly the Daleks have just been the obvious bad guy, and were usually dealt with the somewhat annoyingly obligatory reset button (the Daleks vs Cybermen part was notable for that!) The ones that have been good have been when it's a lone Dalek and they've actually had to deal with the Dalek as a 'person', or when their motivations have been shrouded in mystery.
Example, the Churchill's Daleks one was an interesting idea that kept us at least somewhat guessing at what was going on. The problem was, the decent plotting was forgotten in the abject silliness of it's resolution. (and the fact that the look of the new Daleks was generally hated
but that's for another discussion)
What we need are genuine 'New Paradigm' Daleks, not just some new look, but a different
way of thinking. They're supposed to be geniuses.
Every individual Dalek is supposed to be a genius. But they're not any more, they're just grunts in near-impregnable armour with attitude problems and fancy weapons.
We need Daleks that PLAN and scheme, not just ones that go in to conquer and blow stuff up.
Then they'll be a threat again.
(Side-note, the ideas seeded last season, with them literally taking over organics, Borg-style, may be a good start... I remain on the fence as to whether that was the precursor to a much longer game with the Daleks ending up surreptitiously in control of lots of things. We can hope!)