That's an incredibly modest summary of the article's content Luscion...
"The stopwatch never lies, and we will see next year in Bahrain.
"[We will have] a different chassis, different aerodynamics, different characteristics, different suspension and everything that we can change, we [are going to] change.
"So far, the results in the virtual world are positive, but we need to be careful in terms of managing our expectations. We need such a step in order to catch up to fight for a championship, but obviously if you make a radical step, that means lots of new knowledge."
It could be interpreted from that last part that based on simulations, the W15 has made a significant step already, enough to think they will compete for the championship next year.
A lion must kill its prey.