Germany won't develop them in the next 10 years. But excluding foreign ones because "that's the status quo" is a bit oversimplified.
There is a difference between allowing US weapons under US control (and only to be launched from US planes) to be stationed in the country vs a deeper European collaboration where France stations weapons in Germany for joint European use.
Germany has its own planes certified for use with US nuclear warheads. Any strike command would need to be a joint US + DE decision.
I could imagine that Germany replaces the US warheads with French or even British ones, but not actual ownership of nuclear warheads, nor a situation where a single foreign nation could make the decision to start nukes from German soil without German approval.
There is a difference between allowing US weapons under US control (and only to be launched from US planes) to be stationed in the country vs a deeper European collaboration where France stations weapons in Germany for joint European use.