Questions Regarding the Pending Kovalchuk Deal? You're not Alone

As reported on Wednesday by Larry Brooks of the New York post, the NHL issued an ultimatum to the NHLPA that if they agreed to amend the CBA, the deal would be approved. The stipulations the NHL wanted are:

Now, Brooks has close ties in the PA, so this is likely all true. It is not clear if this would be the final agreement by any means. However, without new details, let's assume it is the final deal.

My questions, which I have no access to ask so I will put them out there for major media outlets to use:

1. Are only these four deals covered under the grandfather clause?

2. If all contracts previously signed are grandfathered in, how will this effect cap calculations? Will there need to be a pre-Kovalchuk contract and post-Kovalchuk contract line?

3. If previous contracts are not grandfathered in, how does that effect cap hit calculations? Does Mikko Koivu's cap hit change? Does any player's deal with years higher than others have a cap hit change coming?

4. Why 40 years old?

Of course, the answers to these questions would lead to follow up questions, but if anyone working for a big media outlet (looking at you Russo) would like to ask these, or similar, questions, it would be appreciated. Some of us are not allowed to ask these questions for fear we wake our mothers.