A metric ton of variables will decide your overall view count, and unless you're doing this to grow a writing job or something, the best answer is to put your best foot forward, post, and find out.
Sailus is right that one of the biggest contributors is whether or not your story aims for the main audience on SH. A straight-laced historical horror with a dose of tragedy isn't going to pull the same numbers here as the next rendition of Isekai/LitRPG + Fantasy + Your specific spice. Series rank on weekly paints a very clear picture here.
As for algorithm visibility, SH's Trending has a preference for spikes in viewership if I recall, which has the funny revelation that posting one chapter every day religiously actually limits your chances of getting frequent visits there in the long term. While it's a good idea to do daily for the first week or so to grab an initial reader base, in the long term most stories adopt the 2-3 day or weekly update method with a bit of lean on one end to grab a view 'spike'. Unless you're the Kitsune guy, dropping multiple chapters in a day to get that spike. Mad man, more chapters than the story's publish age, good lord.
Title, synopsis, cover, plot and prose quality all play a factor as well, but since you didn't offer any examples there isn't much people can say here except give speculative estimates. One thing I'd like to say is perhaps the three drafts:
The initial draft is for you.
(Just get it down on the page, write and flow. Editing can come later.)
The next draft is when ideas become concrete.
(This is the first round of editing, just going through the mess you made.)
The third draft is when feedback and the audience come to mind.
(Truthfully, a large chunk of SH stories get published on site in this stage. Some fall ass-backward into success while others dip into obscurity. If you got honest writer friends or in a group, this is a good time to gauge feedback before publishing.)
Well, all my useless rambles aside, good luck. You won't know your readerships numbers for real until you post. Or you know, like Agentt said, if you even get approved to begin with.
