Well that is certainly interesting and a potentially good theory, but the numbers do not really match this for that scenario either. In my opinion, unless the h1b holders are all getting LMIA backed job offers from Canadian Subsidiaries of US companies ( and the LMIA would need a little bit of processing time, so I wouldn't expect a sudden and immediate impact/increase like we are seeing lately ).
A h1b holder would not realistically have much higher points than the examples I produced as CIC cuts you off after three years work experience for ....reasons and heavily discriminates based upon age.
H1b holder will be somewhere either just below, or in the general region of the CRS points example cases I gave. That is a best case scenario.
Which leaves, in my opinion the order of likelihood for high scoring applicants entering the pool.
- Tons of international Students currently in Canada. ( numbers I am finding are around 353,000 for 2015 ) if this were a large part of the increase I would expect the increase to be noticeable at the end of semesters and also that the pool would be much higher already. For this to ring true the pool size should be in the 100,000s and most scores would be above 450.
- People currently working in Canada. Under Canadian experience class ( would probably match previous years work permits roughly 286,000 ) There are also around 30,000 IEC holders in any given year that "could" be added to this pool under Canadian Experience Class. I would expect the pool size to be much larger and with higher scores in this scenario too.
- Provincial nominee applicants. ( this is the interesting outlier to me given the rather strange way Ontario is managing it's stream this year, compared to years past ).
- Hundreds of experienced, highly educated applicants, below the age of 32 with $20,000 sitting in the bank, with extremely good English/French skills, ready to quit their job and move overseas and pay out a minimum of $400 for ECAs and Language assessment.
- Relatives of PR holders, (who also meet the conditions of 4).
Anyway, long story short, I have a theory, a hunch, that we will see a lowering of CRS scores somewhere around April/May of this year, as per previous years, I can't predict a number with any kind of science, but, I reckon, lower than the 413 seen last year. I hope I am right, as hope is what these threads are all about. My reason for this decrease, is that the provincial nominees will have mostly filtered through, the students will have filtered through and the nightmare process of employers getting LMIAs in the first place makes 2 ( above ) not very likely.

Or I could just be completely wrong