Hi weigertj,
ok thanks for the tip. I had tried that plugin on a dummy database and it seems to leave the English version intact. But considering that I manually need to copy-paste all other languages into new pages anyway, I might as well do that for English too and not risk have the plug-in mess up the database in some unforeseen way. For now (i.e. before the glorious Gutenberg editor ruins it entirely), you can use an html text widget and use the language tags directly in there, like: [:en]Enlgish[:fr]French[:de]German[:]. The normal text widget will give you an error but in the html formatted text widget it works. For now …
WPML looks good but it’s not free and just another plug-in, so after my experience with WordPress and abandoned plug-ins, I was actually thinking to drop WordPress altogether and move to a stand-alone site. It’s actually not that hard I think and this would not only make the site leaner, as you get rid of all the excess WordPress ballast, but it also means less maintenance … funnily enough.
While the reason to initially go with WordPress was to save time, i.e., to have the CMS automatically adapt to new web standards and SEO requirements, etc., with all these pointless changes to the core code (à la Gutenberg), it has the opposite effect now. Having to constantly adapt my site to these changes is a big fat waste of time. Plus I 10 times prefer to edit my webpages in UltraEdit or Sumblime rather than in this useless WordPress editor which has no syntax highlighting and where you need to install a plug-in so you can insert PHP code (I mean really?!?).
Well, this has turned into a bit of a rant, but as a sole business owner, I actually do have to spend some time on running my business rather than managing a CMS that should be managing itself, so v4.9 of WordPress will be the end point for me …
Good luck with WPML …