what's happening with my Strawberry plant?

It's only produced 4 strawbs all year and its now grown these 'bits' which look like early formations of roots.

 

Although looking pretty, that pot is very overcrowded and I would suggest to split the different plants and create new ones by planting the "flying" roots.
As it is now I would be surprised to see any strawberry at all.

 

The original plant would produce less and less fruit as it ages. The new off shoots should be planted up as Miraflores says to eventually replace the old plant.