As Ribble says your line will not change and will still be terminated at the exchange.
However, as ADSL users are removed from the cable bundles your line is in, cross talk from those will decrease which could result in a slight improvement in speed. Conversely any VDSL (fibre) users in the cable bundle from cabinet to pole could increase the noise level and reduce the speeds you see. oVerall you will be in the same ballpark but a small variation up or down may occur.
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