Yes, but you can already see a looming problem: developers are always going to be tempted to go with the newest/fastest card when rolling out new bitstreams.  I am still waiting for my BCU-1525 and I am reading about the CVP-13, which may ship right after I finally get my BCU-1525.  I don't see developers working very hard on last year's model of FPGA to add new bitstreams.  I'm taking what is posted on the Zetheron site more or less at face value, i.e., you can't easily port your bitstreams between models and different brands.
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Technically the most attractive FPGA to develop for is the one in biggest circulation which is BCU1525.  However, if an algorithm 'fits' into a different FPGA's of the same brand (xilinx or intel) it is actually quite easy to port over.  RB1 only took about 3 days to port from BCU1525 to CVP-13.  In some cases bitstreams can be ported from one card to another in a few hours.  Porting 0xBTC to the low cost cards only takes a day or two each.  The bigger problem is porting from Xilinx to Intel or vice-versa.