I'm really looking forward to this. I've hit the 2^16 symbol limit in the ancient GNU ld in base several times over the last few years (the version in ports is fine). It will be great to have a default linker without such 16-bit limits.
Given his current attitudes on LLVM, I'm sure Stallman will se exceeding such a limit as an attack on free software ;)
Seriously though. I guess the majority of major FOSS software out there have a goal of retaining GNU compatibility, so I'd be surprised if this turned out to be an issue.