As Adobe shifts its strategic focus to AEM as a Cloud Service (AEMaaCS), enterprise customers still running on AEM 6.4, 6.5, or earlier versions are entering a period of diminishing returns. While AEM 6.5 continues to receive security patches and maintenance updates, Adobe largely reserves meaningful product enhancements for the cloud-native offering. The message is clear: the long-term roadmap favors AEMaaCS, while on-prem and managed service models are being steadily deprioritized.

For most of you, this is not just a technical migration decision, it’s a financial and strategic inflection point.

The Hidden Costs of Staying Put

Adobe’s official end-of-life (EOL) timelines mean that extended support comes at a premium. Security patches, compliance assurances, and bug fixes will soon require expensive custom arrangements or won’t be available at all. For companies in regulated industries or with high security needs, this becomes a difficult risk.

The High Cost of Moving to Adobe’s Cloud

The shift to AEMaaCS isn’t just a lift-and-shift operation. Legacy customers are discovering that the cost to migrate is steep:

• License restructuring: Adobe has moved to a consumption-based licensing model for AEMaaCS, typically resulting in higher – sometimes eye-popping – recurring costs based on usage and environments.
• Replatforming costs: Many customizations, integrations, and components built for legacy AEM versions need to be re-architected or outright replaced.
• Implementation fatigue: Organizations that once invested heavily in getting AEM running now face a similar scale of investment just to maintain vendor alignment.

It's not uncommon to see migration estimates in the multi-million range for large enterprises, even before factoring in ongoing cloud subscription costs.

Time to Reassess the Landscape

The decision to move to AEMaaCS should not be automatic. The digital experience market has matured significantly since many of these legacy AEM implementations were first deployed. Modern content management systems (CMS) offer:

• Headless and hybrid delivery
• Lower TCO and faster deployment cycles
• Open architecture and easier integration with MACH-based ecosystems (Microservices, API-first, Cloud-native, Headless) and Model Context Protocol (MCP)
• Lighterweight footprint, to co-exist more easily in a future-oriented, “legless” stack architectural model.

Many modern content management solutions better support agile content operations, easier experience curation, multichannel publishing, and faster time to value—often with lower total cost of ownership compared to traditional platforms.

Strategic Questions for AEM Customers

Before committing to Adobe’s cloud migration path, organizations should pause and ask:

1. What are our real platform requirements for the next 3–5 years?
2. Are we paying for capabilities we’re not using—or could get elsewhere for less?
3. Is Adobe’s roadmap aligned with our future MarTech stack model??
4. What would it cost to replatform elsewhere, and could we innovate faster with a new stack?

The Bottom Line

Adobe AEM has been a cornerstone of enterprise digital content strategies for over a decade. But for customers on older versions nearing end-of-life, it’s time for a hard look at what comes next. Whether it’s doubling down on Adobe’s cloud or charting a new course, the decision has far-reaching implications—for budget, architecture, and future agility.

Before committing to an Adobe rebuild, conduct a thorough assessment of your WCM needs, budget constraints, and strategic objectives. Make the effort to explore other modernization paths and solutions that could offer better flexibility, stack fit, and cost-effectiveness. You certainly don’t lack for solid choices. If you'd like help evaluating your options, drop RSG a note.