Yes, it's highly likely the continued rise of utility-scale solar and lower retail electricity prices will impact the financial sensibility of home solar. Of couse, California recently mandated solar power on much of new home construction, so the state forced the issue and we're likely to see more legislative and legal efforts from its opponents to fight it, and from its supporters to try to remedy those impacts that defeat its point. Net metering is a widely-deployed incentive to encourage home solar, but is opposed by plenty of influential lobbies. Homes with solar have some unique benefits, like added resilience from grid fluctuations, but it remains to be seen what monetary value people will place on such features.

As with many things, the story of home solar will likely be one of early adopters duped by bad numbers and opportunistic businesses, of jurisdictions mandating the issue and running into all sorts of unintended consequences, and a tangled web of policies enacted to fudge the numbers until the observed costs to the affected people pencil out to a socially-acceptable level of hardship or benefit.