A Shamy wedding would be a huge event, and The Big Bang Theory has two full seasons to potentially plan out ahead of time.
Given that The Big Bang Theory was just renewed for Seasons 11 and 12, even if Amy does say yes, they might be in for a long engagement.
There’s no guarantee that Amy will give Sheldon the answer he’s looking for in his big proposal.
Since wedding planning between Sheldon and Amy would undoubtedly be hilarious, even the biggest Shamy fans might not be too upset if we don’t see a wedding ASAP.