I have the 1591 barrel grip (BEST jigsaw I have ever used), and the 1590 top grip (also a really good saw, but I much prefer a barrel grip). I got the top grip first for cheap at a pawn shop, and waited years until I finally found a barrel grip at a price I was willing to spend.
The current most comparable model would be the JS572, though the 1590 series was the last to be made in Switzerland. The cheaper JS470 does not have the extra blade support that really sets the tool apart from cheaper saws.
However, looking at the INSANE pricing for current Bosch JS752 models made in Asia ($270), I'd much sooner recommend a Festool PS300 for less money if you're insistent on buying new. The Festool has a comparable carbide blade support, and comes with a zero clearance insert for fine wood work (actually, it has a lot of options not available from Bosch). I haven't handled a Festool Carvex to know if the brushless model is worth the extra expense.
If I were in the market, I'd be searching eBay for a 1591 (I see two currently), if you like a barrel grip. Some people don't; I'm not sure what's wrong with them.
BTW, the REAL Bosch metal cutting jigsaw is a pneumatic model that's been around a long time, and costs mega bucks. These come up on eBay from time to time, but I don't use a jigsaw enough to justify one (as in all-day long, day in and day out).