Well I would not be totally against a running track option for the new stadium if the city will pay for it. It is possible to build a stadium that can be changed from a football stadium into an athletic venue.
This Singapore stadium is a poor bowl and I am totally against a design like this for our new stadium, but I suppose it may be possible to build a fully convertable football stadium that can accommodate athletics track via retractable/moving seating.
If it is possible to design a stadium that looks like San Mames, but can be changed into an athletics venue as well, then why not.