Hard to say. As
@Yago pointed out, the release of the Carrera Silver 160th seems to have had little affect on the original 2447S. However, the release of the Hodinkee Dato 45 seemed to have renewed collectors' interest in the original and I saw that prices for the vintage ones trended up after the release.
What Nicholas is implying is if TAG Heuer were to re-issue a 2447SN (Panda) or 2447NS (Reverse Panda) it would hurt the collectors. The Carrera 2447 Pandas & Reverse Pandas are more expensive and harder to find. If TAG Heuer were to do a re-edition for around $7500, it would still be half the asking price of a typical vintage original. But I really doubt a glassbox re-issue would hurt prices that much, since they aren't exact copies.