Thinking this through...
The One Up plan only began active two days ago, on the 20th. The same day Sprint released the IPhone 5. The incentives end on Oct 10. If the Note 3 is released the same day, the One Up incentives will have been in place during exactly the period of time the IPhone 5 was available, but the Note 3 was not.
But wait, let's say after the 25th, they allow for online pre-sales. Well that should solve the problem, right? Just get a pre-order and sign up for One Up. Nope.
From the One Up fact sheet:
"Can I sign up for Sprint One UpSM if I pre-order a device?
Pre-orders are not eligible for Sprint One UpSM at this time. Please visit a participating Sprint Store to purchase a new device and sign up for Sprint One UpSM."
A coincidence? If they do release the Note 3 on Oct 10, I think we will already know why they have been so silent. They are pushing IPhones...
...still just reading tea leaves; I suspect it will become obvious at the Samsung presser on the 25th.