The Time Lords have already done everything they had already done when they were Time Locked. The Time Lock didn't erase their actions, it locked them away from having any further impact on anything, but, everything they had done before they were Time Locked (wether 10 Billion years from our Now, or 5 10 Billion years ago from our now). It affected them, no what they've done. Time Lords aren't linear in time, so their linear actions are unchanged by their non-linear disappearanceNothing about the Time War/Time Lords' extinction makes the slightest bit of sense. If the Time Lords are cut off from all points in history, none of the classic series could have happened. But it has - how? There is no explanation, because it's a load of nonsensical crap. I don't know why other people can't see it.
Clearly, there are only two possible solutions.
1. Everything from the old series and series 1-4 of the current series never happened.
or
2. You're taking things far to seriously and you should just stop watching.
No, and no.