I understand that the 2MB HF will need a high % of mining backing it in order for it to activate, but i would like to know if core plans on adding in the code to allow this process to happen.
I don't want you to freak out or anything but Luke is focused on fulfilling the promise. Luke's opinion is also one that blocks should be limited to 0.5MB by miners right now. Additionally, it was made abundantly clear that the developers at that meeting do not speak for core. Thus your hopes for getting a consensus of core supporting Luke's HF proposal is very low, especially since there are so many other solutions on the table to increase capacity and scalability without the same tradeoffs.
Now this would be the better way to convince developers to support an increase in the blocksize:
1) Figure out a method to encourage more decentralized nodes and decentralization of mining to alleviate their concerns. Developers have a clear understanding of the security vulnerabilities of bitcoin unlike the average user and see how vulnerable it is now, placate these fears with real solution or evidence and they will be much more likely to agree that increasing capacity with the blocksize is safe
2) Focus on helping layer 2 solutions like LN , payment channels, ect to increase capacity.