“Rev 2 has exclusive DLC Miis.” Fact: No. Rev 2 only contains bug fixes. All SpotPass Miis are server-side and no longer downloadable.
“You cannot transfer saves from a physical Rev 1 cart.” Fact: You can. Use Checkpoint or JKSM to export your save from the cart, then import it into Rev 2. The save structure is identical. Tomodachi Life -Europe- -EnFrDeEsItNl- -Rev 2-.cia