There's going to be a lot of missed diagnoses of myo/pericarditis as it's prevalence was deliberately downplayed by "health authorities". These undiagnosed, and hence untreated, cases will be more likely to progress to cardiomyopathy, leading to heart failure. If they progress at the usual rate of myocarditis patients, the 5 year mortality rate will be about 50%. If 2-3% of the jabbed have myo/pericarditis (clinical or sub-clinical), you could see 1-1.5% of the jabbed population die over the next 5 years. The mortality rates might be higher though, as the possibility of getting a heart transplant will be non-existent due to very low supply of undamaged donor hearts and massive demand. Also, these people's immune systems may be so junked that organ transplant may not be an option for them.