Huh. I hadn't thought of that. Some of the states at risk are rural, with low populations, such that loss of a statistically relevant number of voters is a possibility.
I'm not sure that this is likely to happen. I live in an extremely rural and conservative county in Washington State that only makes up about 3% of the state, population-wise, but we've had around 1/12th of all the Covid-19 deaths in the state (a little under 500 deaths in the county, a little over 6,000 deaths in the state), and our vaccination rate is slowing down a ton and seems to be levelling off at about 50.5% of the population here. We're also mostly opened up.
In a county that's population is over 250,000, I don't think that 500 deaths is going to affect many election results, especially since the 500ish people that died are almost definitely a mixture of Republican and Democratic voters.
It may be different in some other parts of the country, and as less and less people get vaccinated, Conservative deaths from the pandemic are likely to rise, but I don't see it becoming anywhere near the levels that would be required to make any significant population-based political difference, and even if it did, I don't see Fox and similar networks changing their "gameplan" anytime soon.
I feel the need to point out that I don't wish harm on anyone, regardless of their political leanings. I'm simply more able/"comfortable" (that's not really the right word, but I'm not sure what is) than most people are to get into the "cold, hard numbers and facts of death". If I could prevent these deaths from happening, I would. Sorry if this seems a bit callous.