h0b5t3rI think Valve would like to see comp have no whitelist but thankfully they understand that some weapons need to be changed for that to happen
One of the main points for them is to gain structured neutral feedback about weapons that is both positive and negative. Afaik they still want a weapon pick/ban system of some kind so they can find out both what people like playing with and what they hate playing against. On that basis it'll be no white list but with the potential for a pick/ban meta to evolve over time. If it happens to be enough to get rid of the most serious offending weapons then competitive type white lists will probably be established naturally.