It would be very good indeed for org-babel if it could be ported to other editors. One of the biggest drawbacks of org-babel notebooks is that I can't collaborate with my colleagues on them, since I can't expect them to use Emacs.
Aside from VSCode, I think RStudio would be an excellent target for a few reasons: - Literate programming is already popular among R users (see also: knitr, sweave, Rmarkdown) - There is a strong ob-R community here - There are some prominent Emacs users among the Rstudio developers (e.g. Lionel Henry, who I think is both an Rstudio and ESS developer) However, this would be a massive undertaking, and ultimately would need a volunteer to step up to the plate. I don't have any bandwidth to do this in the foreseeable future but dream of working on it one day. The biggest downside -- it would require spending considerable time outside Emacs!