According to the spectrum on TNS
https://wis-tns.weizmann.ac.il/object/2018pv
This is a type Ia and ngc3941 has a distance modulus of mag 30.3 so theoretically it should top out around mag 11. The spectrum shows signs of high extinction from the host galaxy though (strong insterstellar Na line) so probably will struggle to reach that
Cheers
Robin