Do share it by all means. Here and the discord server.
While we do not have spoiler rules for the wiki's discussion board (there is one for the wiki space; and netither the markup for it), I will leave this reply up for 24 hours, after which I take down that spoiler and close this post (as per the assumption the OP has received their answer). This is to prevent people from being spoiled.
As a wiki editor, I am interested in seeing the new skin. I will have to hear from the other registered users first though.
You can read the manga to find out.
If anything, my only concern is that the new design will not be compatible with the current CSS. But I would not suppose that is the case because this should be UX upgrade and not codebase revamp like what happened with UCP.
Otherwise I would need to retake time to get used to the new editor UX. But again not global concern.
Off-topic answer, you can start reading the manga from Chapter 87 onwards
I am indifferent, tilted to "like"
You can find a lot on pixiv, pintrest or reddit.
There is no changing the ending, sadly. I know Miku is very popular as choice and I am on Itsuki team,
You can write a fanfic however, and a well-written fanworks tend to get a lot of upvotes.
That's a big project. Maybe try asking help in the wiki's discord server
A route ending like what happened in BokuBen? I'd say that sounds good, but Negi-sensei has moved from 5Toubun to a new series.
I do not suppose there will be a season 3. Season 2 has adapted a lot of contents and I doubt there will be any left for SS3.
I do think we can hope for a movie or OVA tho
Thanks for informing. As far as I personally concern, I haven't run into any such thing that I notice.