The best replacement for t4i is t5i.

The best alternatives to t4i are rated as following:
★★★★★  t5i
★★★★  t3i
★★★★  60d
★★  sl1
★★  nikon d5100
★★  7d
★★  70d
★★  d5100
★★  d3200
★★  d5200
★★  nikon d5200
★★  canon 60d
★  t2i
★  6d
★  d7000
★  50d
★  5d
★  t3
★  nikon d3200
★  canon t3i
  d3300
  t5i canon
  canon t5i
  nikon d7000
  nikon 5200
  a57
  sony a57
  nikon 5100

Your alternative for t4i is not listed? Suggest!
Speaking about t4i, one probably shouldn't forget about 40mm.

Other search terms related to t4i and their ratings are:
★★★★★ 40mm
★★★ magic lantern
You have in mind a companion for t4i and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of t4i in all years. Click on graph for more.
t4i
t5i
t3i