Will there be a massive surge in Mortality from Covid?

Reviewing the characteristics of the 1918 flu pandemic which disproportionally affected young adults in the second wave. Is that possible in this current evolving Covid Epidemic of highly vaccinated regions?

Quote "Of the unexplained characteristics of the 1918–19 influenza pandemic, the extreme mortality rate among young adults (W-shaped mortality curve) is the foremost. Lack of a coherent explanation of this and other epidemiologic and clinical manifestations of the pandemic contributes to uncertainty in preparing for future pandemics."

Shanks GD, Brundage JF. Pathogenic responses among young adults during the 1918 influenza pandemic. Emerg Infect Dis. 2012 Feb;18(2):201-7. doi: 10.3201/eid1802.102042. PMID: 22306191; PMCID: PMC3310443.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3310443/