Hello @echo1024_SHARXS . Thanks for your questions.
Is it possible to import Online Compiler project into Keil Sutido Cloud after Online Compiler retirement(2023～）?
Yes, this will still be possible, however I would recommend taking this opportunity to make sure that anything critical can be successfully imported.
・I published my programs to “My teams” page from Mbed Online Compiler.
(in online compiler : Commit → Publish)
Will these data/page be deleted?
No, these pages will not be deleted. In general we recommend that future projects are published to GitHub or another remote repository management system. For existing projects there is a guide to converting from Mercurial to GitHub in Keil Studio Cloud.
Please let us know if you have any problems.
Will