We are still "overdue" ~ however, after lengthy study of the situation backed up with geologic research there are some "theories" about why we are "overdue" and what might be happening.
Please don't get it in your head that Global Warming has put an end to the Ice Ages ~ there've been 20 of them in a row, and there's going to be many more of them.
You might have noticed that the GW/AGW folks never tell you about the cooling trends ~ and, in fact, like Dr. Mann have actually attempted to distort the records regarding the Medieval Warm Period just to make any recent warming seem unusual. That's because they do not want to face up to the fact that the ice core records clearly show that we are OVERDUE!
Some earlier Ice Ages were a tad overdue as well. The simplest explanation is that for a variety of little understood reasons the end of the then current Interglacial merged into an early Interstadial. We may be in that situation now, in which case we might have 1 to 5,000 years before the next major glaciation. Or, it could start this winter ~ just give us some major volcanic eruptions, combined with the current cool-dry air flows, an El Nino at the wrong place, or stronger than usual (pumping up vast quantities of near freezing water from the ocean bottom), and you'll get your Ice.
The Bible teaches us that no man knows the time nor place of his own death ~ and I think we have that in spades at the moment. We are standing on the precipice!
What do you think of:
1. “Magnetic Reversals and Evolutionary Leaps”
and
2. “Not by Fire but by Ice”
both by Robert W. Felix?
(As in your comment regarding the next ice age being overdue, he shows how the next reversal is also overdue and the progress towards it is well underway. The magnetic field around the earth is more than 50% degraded at this time....)