I fully agree that the step from Associate to Expert has become too big to remain motivational. Introducing a Professional level as a clear half-way milestone would give developers a realistic and rewarding goal and keep them engaged on the certification path.

Not every developer aims to be full-stack. A Professional level based on selected specializations would better reflect role-focused expertise, act as a meaningful trust signal for customers and partners, and align with how development teams actually work.

Finally, a Professional milestone would encourage developers to choose certifications that truly match their role, instead of simply chasing all six specializations to reach the Expert badge. This preserves the Expert level as cross-domain mastery and avoids certificate inflation, while still rewarding real progress along the way.

Thanks @Martin Henning for raising this point. Indeed the gap is very wide between as Associate and an Expert.

Also, the point @Sebastian Krempel mentioned, the current path generalize the skillset of the OutSystems developer.

A professional level for a front-end and a backend developers will reflect better on the community members actual specializations.

I understand the gap to reach Expert is bigger than before (and getting bigger every year), but knowledge is also getting wider. 

You can see each Specialization as a "Professional in that field". It has the two stars and all.

On a side note, there is not enough content in OS to be Professional Front-End.