They should only move to the NAZ after the share price has begun to reflect the actual value of the technology, partnerships, and company.
The more the share price moves upwards and corresponds to the actual value of the company the greater the reward for current holders - both in terms of shares held but also in terms of stock splitting (although the argument would be that the cap does not change regardless of a split - I would still prefer a $10 share price pre-uplist than a $1 share price).
I believe we will begin to see a dwindling supply of shares as the demand begins to pick up significantly due to a combination of: announced design wins, announced partnerships and agreements, announced revenue numbers, announced production numbers, share conversion overhang being reduced.