Rock Around The Block
Based on the time this will be posted, I imagine that the majority of the people who will be on my STEEM block will be those in the western hemisphere and the far east. Most of Europe will be fairly quiet. If this were a weekend, I might include them, but since there's work and school for a lot of people tomorrow, I would imagine most are already winding down.
No doubt the bots are working 24-7, so there's bound to be a bunch of those on my block. I'm not that aware of who might be considered a celebrity on Steemit, but I'm just going to say that @papa-pepper and @meno show up there. It's bad luck to give the name of a troll, but there's probably plenty of those, too, since just like bots, they don't ever seem to sleep.
As far as who might be the landlord or the witness who mints this block, it would be cool if it were @steemcommunity or @pjau, or someone else I am pretty familiar with. Both of them are very community minded in somewhat different ways, and either of them could use the work.

What Might Block Actually Looked Like—UPDATE
Well, this is rather eye opening.
I'm not entirely sure what I was expecting (probably should have gone and looked at a block before I made any kind of predictions) but the block doesn't seem to be that big. All told, there's 29 operations on it, which split up thusly: 14 custom_json, 11 upvotes, 2 replies (which are actually posts—mine and another) 1 claim_reward_balance, and 1 transfer.
Breaking The Block Down
Okay, so my block number for this post was 28,454,202. The witness was @timcliff a Top 20 witness who is pretty active on the blockchain and seemingly always quick with an answer to many questions.
Of the custom_json operations, most if not all seemed related to STEEM Monsters in some fashion, with sm_team_reveal and sm_submit_team making the bulk of them. Within the data there were terms such as "steemmonster" and "summoner," or "matchtype:Ranked."
Those receiving upvotes included @moncia90 and @isaandrich, who both got two on the same block.
My post as far as the timestamp goes, appears to be among the last on the block, coming in at T23:42:18. I share that time with six others. Eleven different operations showed up at T23:42:15, the highest amount on the block. The earliest, though, came in at T23:33:15, which seems odd to me. Am I reading this wrong? Were these operations from the beginning to end nine minutes apart? I would think it would be more like nine seconds, or less, for that matter, but I fully admit I don't know what the timestamp is actually referencing.

The above is a look at where I came in on the block based on the Operations tab, sandwiched in between an upvote for @violetmed and @steemcafe, with the upvotes coming from @sergino and @letsplaywhatelse.
No one I guessed at appears on the block. Sigh. Sorry guys. I do recognize moncia90 because they won both the engagement and the curation leagues that @abh12345 hosts every week, which is the first time I've ever seen that happen in nearly nine months. I recognize @smartsteem, too, who apparently transferred some STEEM to @valikos on my block.
Final Thoughts
I should have done a little more exploring and thinking before I just guessed. I thought about folks who might be posting at this time, rather than every other action on the blockchain, including how much the STEEM Monsters might be affecting things. I should have really factored in voters, too.
All-in-all, though, I enjoyed the exercise. There's a lot of data that doesn't make much sense because it looks like long cryptic lines of random letters and numbers, so it's not all thrills and chills down there. However, as an educational exercise, it's very enlightening, and very much worth the effort of posting first, then going to look at the block and adding the update.
Time's running out on the contest if you want to participate. You can find the particulars below.

About This Post
This post is a participant in @sndbox's Who Are Your Blockchain Neighbors? [BlockEdu contest]. The objective was to make some guesses about who or what might be on the block this post ends up on, then actually update the post with interesting data from the block itself.
You can find the rules here.
Images come from Pexels and steemdb.com.