The hardware sales for 2013 were a fair bit lower than past years as well as Nintendo's forecasts. If by "anytime soon" you mean "not even in two years", then I strongly disagree.But the 3DS picked up a lot of momentum in 2013 and even though things have slowed down a bit this year, I wouldn't expect new hardware anytime soon.
No question the 3DS isn't doing as well as Nintendo had wanted and expected, but it's a far cry from the travesty the Wii U has become. With Smash Bros. and now Pokemon leading a growing 2014 lineup (and with more sure to be announced at E3) it doesn't seem to be the right time to delve into new hardware. Two years, yeah, maybe. But not this E3, not in the relative future.