The next ice age is coming. Whether there is a ‘little ice age’ with some cold years, followed by a little more warmth, eventually the Great Cold will return. The known Ice Age average is 100,000 years, but who is to say how long the next freeze will be. The Sun is the main driver in all this. A large ice sheet will spread down from Canada. Previously New York was under a mile of ice. Can you say brrrrrr. Sure, I knew you could.
The problem is not the returning ice, the problem is the returning climate conditions that create the ice. We will get a stronger taste of it next winter. The PNW and California this winter were just nailed with snow. Good for drought though. Theoritically you can experience short atmospheric warm pulses as the oceans are cooling. And over all the planet could be cooling in that case since the oceans are much more dense than the atmosphere.