Buy 'em,
With weakening US economy and more rate-cuts by the fed I think we'll see a shift from the short to the long end. However, we may also see the short end supported by switching of sellers of equity market products and corporate debt (not to mention a broader equity market sell-off by those big players who can't meet margin calls).
I reckon any selling in the bond futures markets will be countered by buying on dips. Further, if the dollar continues to weaken, we may see even more pronounced buying of Eurex bonds.
Grant.