1- Do you think that QF was a bubble ? Or the market is soaked with Quants ? If not; What type of jobs still available for Quants QF/MFE ?
Yes, - a bit, but there's still real work to be done with real jobs being created in the banking sector.
2- Do you think that DSA is the new MFE ?
Maybe. Tech is moving really fast. There may be real opportunities on the fintech side wrt payments.
3- What is your outlook for both QF/MFE and DSA ? i.e. Jobs availability , Salaries , Placement Trend , Supply vs. Demand ?
More supply, but no one goes hungry.
4- Which is more related to Quant/Algo/HFT Trading ? I'm only interested in Quant Trading / HFT.
I have no answer. I think that HFT is one bad flash-crash away from being heavily, heavily regulated.
5- What you think about this Chart ?

I think that until I know exactly what'S being measured and how I will reserve judgement
Thanx