Gotcha. I guess my answer would be a shoulder shrug and "maybe, maybe not". I'm terrible at guessing about arbitration, anyway.
I'll offer the very tiny amount that I (think I) know about arbitration/FA compensation. A player's salary cannot be reduced by more than a small % through arbitration, and in almost all cases, will stay the same or go up. Therefore, if the Astros offered, and Tejada accepted, he would almost certainly be awarded something close to his 2008 salary (around $13 mil). Given the blow the FA market has taken with the economy, it seems unlikely that Tejada, despite his success this year, would get anything close to $13mil/year on the open market, so he would almost certainly accept arb if offered.
Ditto with Hawkins, again IMHO. There were some relievers last year -Juan Cruz comes to mind- who were listed as Type A, and even though he declined arbitration after the D-backs offered, Cruz had trouble finding a job because teams were unwilling to lose a 1st-round pick just to sign a middle reliever. The same thing happened with Varitek, Bora$$ couldn't generate a bidding war for him because teams would've lost their 1st-round pick.
Type B FA's don't cost the signing team any of
their own draft picks- the team that loses them is awarded an extra, sandwich-round pick. So teams would not hesitate to sign Pudge, for instance, if the wanted him, regardless of whether the Astros offered him arb.
So my guess, based on what the Astros did last year with their arb-eligibles, is they'll offer arb to Valverde, and maybe Pudge, but that's it. Tejada seems to like it here, so maybe they'll re-sign him to play 3B?