These are just my opinions:

Are the steem platform witnesses working to get sbd back to its supposed peg value with the measures put in place to check inflations like this?

I don't think they are and that's ok with me for now. There are great benefits to SBDs trading high right now ie. post payouts, upwards pressure on STEEM price. As longs as witnesses maintain a steady price feed between STEEM and usd... they are doing their job IMO

Is this just a pump or sbd is finding its true value?

pump

Will sbd ever get back to the $1 range as it was originally created to be?

Yes

Is sbd interchanging roles with steem on the platform?

No

What will be implication of this on the steemit platform if sbd keeps mooning?

People will sell their SBDs for lots of STEEM... driving the price of STEEM up