@BillHyatt thanks for this information and for so much other information you have posted elsewhere. This is the first estimate I have seen of when OINP might open its HCP stream again. Where did you get the September estimate from?
As I have mentioned in many other posts, I received NOI on July 11, scrambled to gather my documents, and was ready to register and submit on July 25, the day they closed! So I have been really upset and checking for updates every day. I think your September estimate sounds reasonable, given that with the 14 day deadline to submit after registering, there will be no submissions after today (Monday August 7). Ontario officially says it takes 30-60 days to process an application, but most people on this forum, especially ICT people, seem to be getting their nominations in 10-30 days, so it's reasonable to estimate that the vast majority of applications will have been processed by September 7, and by then Ontario should have capacity to accept more. But I am curious where you are getting your September estimate from. I also think once Ontario updates its stats on number of nominations remaining for this year, we would be better able to estimate when it might reopen:
http://www.ontarioimmigration.ca/en/pnp/OI_PNP_PROCESSINGTIMES.html