Eventually, someone might try but no way on the 4 1st round picks. The 1st,2nd, and 3rd between the 6.8-9.1 million range think could happen but depending on player their team might just match it anyway.Offer sheets are all calculated with a max length of 5 years, for purposes of determining compensation.
A 7x9 has a total value of $63m. So, divided by 5, it would be a $12.66m AAV, and 4 1sts for compensation.
You wont see offersheets over 5 years, for this reason.