OK, a longer more detailed answer.
In several recent years, there were around 100 - 105,000 selectees each year and the number of drop outs would mean there were enough visas for all - so the assumption was that all people got an interview. People became used to seeing the numbers going current in the last month or two months of processing. Generally the region going current was accepted to mean that USCIS believed there were enough remaining visas and processing capacity to process all the remaining numbers, so no longer needed to impose a cutoff limit to control the order of processing. Post year numbers showed that the visas were not exhausted each year - they were slightly underfilling the target meaning some visas were being wasted.
However, this year is different. In our selectee letters we were told that 125,000 selectees had been notified and then in the September visa bulletin we learned that there were just over 140,000 selectees this year. The VB also stated that the larger number
selectees was to ensure that the visa quota would be filled this year. I guess there had been some criticism of the wasted visas. How do you ensure you will use them up ? You select MORE than you know you will need.
So - some selectees will be disappointed - that is certain - what we don't know is where the axe will fall (the global 50k limit) and how the region to region quotas will be spread out. When you have an underfilling situation, the regional quota is not what determines the spread of visas - it is based on "chance" within the selectees. So, when they were only selecting 105k they were not able to pick and choose the regional spread. Since unused visas from one region could be used by another region, chances are that we were not seeing the quotas implemented with their full effect. At 140K they will be able to determine the regional spread and the regional quota could mean that a region hits a limit and never goes current whilst another region continues to be expanded until it too is filled or the global limit is met. That is a possibility. I suspect that is what will happen for EU and OC this year. I think they will accelerate the processing in those regions relative to other regions so that regional quota are met in those regions. I don't know what that will mean in terms of numbers but I would not be surprised to see EU get around 20k visas this year...
It is all speculation at this point but I do believe this year will be different than previous years...