Umm...it kind of depends...you might end up with bumper crop..
If the ground is fertile enough and you are willing to provide enough moisture for their needs, yes..you might end up with quantity but no necessary quite as 'picture perfect' berries. Like already mentioned, there is the 'lurker' issue..and too much over grown conditions create more shade too, which will effect the colour and flavour.
If you are not worried with neat and straight lines of plants....just leave them be for time being, come spring you will see what start to sprout new leaves strongest, leave them be and maybe just take the weaker one out. If you are not happy with results next summer, get the spade out and do some more ruthless 'thinning'. Nothing wrong trying out and see what happens.
..