Here is a make or break proposal for CAPs:
   Make the POS equivalent to at least 30% interest per year... for the next 10 years.
   For holders it means a doubling of their position every 3 years.

Why?

  Be bold. Capture the imagination and people will hold.

  Stay generic and conservative... and look forward to become irrelevant among most alt-coins.

===

Will the price crash? Who knows. The equilibrium between holders and what is left to trade might be an interesting experiment.

At this point I believe the design decision should be about *positioning* the coin among the holders.

Holders are the best at promoting and supporting a market. A coin needs "thousands" of evangelists to build confidence. A few dozen of developers and believers is not enough.

Of course inflation matters and some adjustment to POS beyond the 10 years has to be written in stone, but it is not a time to think conservatively.

Designing for the far future is irrelevant if a coin does not make it on short term.

It is about survival in the growing shadow of BTC... and a coin worth holding NOW could be among the few last still standing in people's wallet 10 years down the road.

Again:
   Be bold. Capture the imagination and people will hold.

(All IMHO)