Keeping it in ED is probably not a bad decision. So far this year, ED has raised its savings account rate from 3% to 4%. If that continues, ED could be 5% by this time next year. So that would roughly equal a 4.5% 1-year CD today.
You may also want to consider some shorter term CDs.
Corus Bank now has 6-month CDs paying 4.35%. Also
State Farm Bank has a special 3-month CD paying 4.25%. World Savings Bank currently has the best short-term CD (5-month 4.65%). It's only been advertised to specific customers, but they will honor it if you mention the CD when you
call.