The best replacement for hasselblad is mamiya.

The best alternatives to hasselblad are rated as following:
★★★★★  mamiya
★★★★  phase one
★★★★  leica
★★  bronica
★★  rolleiflex
★★  mamiya 645
★  contax 645
★  mamiya 7
★  pentax 67
★  rollei
★  rolleiflex tlr
★  mamiya rz67
★  pentax 645d
  rz67
  contax
  mamiya rz
  pentax
  leaf
  mamiya lenses
  phaseone
  4x5
  mamiya rb67
  leica s2
  mamiya 7ii

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Speaking about hasselblad, one probably shouldn't forget about digital back.

Other search terms related to hasselblad and their ratings are:
★★★★★ digital back
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Google Trends

Scale is based on the average worldwide traffic of hasselblad in all years. Click on graph for more.
hasselblad
mamiya
phase one