"Earning on content will be the province of a small minority of professionals."The content earning for most people (as it currently stands) will draw to a close quite quickly but the form of what content is will change too.
Yes, with the apps providing decentralized counterparts of popular centralized platforms. While STEEM inflation will predictably go down at a constant rate and trickly down to nothing about 20 years from now, the issuance of SBD can and probably will continue without any limit set in stone.
"Steem Power will always be an attention magnet because it allows its holder to exercise control over rewards."This is part of the distribution phase, the shareholders are those who hold steem. The stakeholders (not to be confused with having stake on the pool) are those who rely on the platform for various aspects.
Can you clarify what you meant by that, please?
"Large corporations will use Steem to implement loyalty programs, contests etc. to reward their customers."Large platforms can use SMTs to do the same, hopefully.
Yes, but it's hard to predict what will become of Steem in the late 2030's when all the STEEM will have been distributed.