Forrester Says the 'SaaSPocalypse' Story Is Too Simple — Here's Its Replacement

The “SaaSPocalypse” story — AI is about to gut software vendors’ seat-based revenue — is too simple, according to Forrester analysts Craig Le Clair and Ted Schadler, who introduced the Forrester AI Disruption Model this week. The framework scores nine disruption drivers across 17 technology categories and more than 200 markets, sorting them into four buckets: Disrupted Markets, where AI directly replicates core value — custom software development, creative services, corporate training — face severe pressure; Neutral Markets, covering physical products and regulated, high-switching-cost offerings, stay relatively protected; Contested Markets sit balanced, with room for vendors to pivot toward supporting agentic workloads; and Accelerated Markets — infrastructure, data, model, and integration providers — actually benefit as enterprises deploy more agents. “AI’s effects will not be distributed evenly,” the authors write. “While some markets and vendors face extreme headwinds, others are poised for historic acceleration.”

The model gives structural shape to an argument SaaStr’s Jason Lemkin has been making in narrower form for weeks. Back in July, Lemkin argued AI won’t kill SaaS broadly but will kill stagnant point solutions specifically — his example was a $4,000/year newsletter tool he replaced with a two-hour custom build, while warning of “stealth churn” as customers quietly build in-house replacements before renewal. That’s a Disrupted Markets story in Forrester’s taxonomy. But Lemkin has also made the Neutral/Contested case directly: at SaaStr itself, a company running 20-plus AI agents against just 3 humans still relies on “real” B2B software for shared logic, a canonical system of record, and auditability agents can’t replicate ad hoc. For sales orgs selling software into this environment, Forrester’s model offers something Lemkin’s case studies can’t: a market-by-market way to tell which of those two stories — replaced, or reinforced — applies to a given deal.