Meanwhile on the other side of that lovely little island:
> In 2025 when the tunnel (the Fehmarn Sound Tunnel) was still not approved by authorities it was revealed that it would not be opened in 2029 as it was then planned but in 2032, which would delay train traffic along the new connection until then. Road traffic can use the old bridge.
Source: https://en.wikipedia.org/wiki/Fehmarn_Sound_Tunnel
I would bet actual money that we (as in we Germans) don't get that tunnel done before 2035.